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path: root/drivers/net/can
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Diffstat (limited to 'drivers/net/can')
-rw-r--r--drivers/net/can/c_can/c_can.c51
-rw-r--r--drivers/net/can/c_can/c_can.h1
-rw-r--r--drivers/net/can/dev.c2
-rw-r--r--drivers/net/can/flexcan.c3
-rw-r--r--drivers/net/can/mscan/mscan.c21
-rw-r--r--drivers/net/can/sja1000/peak_pcmcia.c2
-rw-r--r--drivers/net/can/slcan.c21
-rw-r--r--drivers/net/can/spi/Kconfig5
-rw-r--r--drivers/net/can/spi/mcp251x.c42
-rw-r--r--drivers/net/can/usb/gs_usb.c5
-rw-r--r--drivers/net/can/usb/peak_usb/pcan_usb.c32
-rw-r--r--drivers/net/can/usb/peak_usb/pcan_usb_core.c12
-rw-r--r--drivers/net/can/usb/peak_usb/pcan_usb_fd.c2
-rw-r--r--drivers/net/can/usb/peak_usb/pcan_usb_pro.c2
-rw-r--r--drivers/net/can/usb/usb_8dev.c3
15 files changed, 144 insertions, 60 deletions
diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index e3dccd3200d5..4ead5a18b794 100644
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -52,6 +52,7 @@
#define CONTROL_EX_PDR BIT(8)
/* control register */
+#define CONTROL_SWR BIT(15)
#define CONTROL_TEST BIT(7)
#define CONTROL_CCE BIT(6)
#define CONTROL_DISABLE_AR BIT(5)
@@ -97,6 +98,9 @@
#define BTR_TSEG2_SHIFT 12
#define BTR_TSEG2_MASK (0x7 << BTR_TSEG2_SHIFT)
+/* interrupt register */
+#define INT_STS_PENDING 0x8000
+
/* brp extension register */
#define BRP_EXT_BRPE_MASK 0x0f
#define BRP_EXT_BRPE_SHIFT 0
@@ -569,6 +573,26 @@ static void c_can_configure_msg_objects(struct net_device *dev)
IF_MCONT_RCV_EOB);
}
+static int c_can_software_reset(struct net_device *dev)
+{
+ struct c_can_priv *priv = netdev_priv(dev);
+ int retry = 0;
+
+ if (priv->type != BOSCH_D_CAN)
+ return 0;
+
+ priv->write_reg(priv, C_CAN_CTRL_REG, CONTROL_SWR | CONTROL_INIT);
+ while (priv->read_reg(priv, C_CAN_CTRL_REG) & CONTROL_SWR) {
+ msleep(20);
+ if (retry++ > 100) {
+ netdev_err(dev, "CCTRL: software reset failed\n");
+ return -EIO;
+ }
+ }
+
+ return 0;
+}
+
/*
* Configure C_CAN chip:
* - enable/disable auto-retransmission
@@ -578,6 +602,11 @@ static void c_can_configure_msg_objects(struct net_device *dev)
static int c_can_chip_config(struct net_device *dev)
{
struct c_can_priv *priv = netdev_priv(dev);
+ int err;
+
+ err = c_can_software_reset(dev);
+ if (err)
+ return err;
/* enable automatic retransmission */
priv->write_reg(priv, C_CAN_CTRL_REG, CONTROL_ENABLE_AR);
@@ -1029,10 +1058,16 @@ static int c_can_poll(struct napi_struct *napi, int quota)
u16 curr, last = priv->last_status;
int work_done = 0;
- priv->last_status = curr = priv->read_reg(priv, C_CAN_STS_REG);
- /* Ack status on C_CAN. D_CAN is self clearing */
- if (priv->type != BOSCH_D_CAN)
- priv->write_reg(priv, C_CAN_STS_REG, LEC_UNUSED);
+ /* Only read the status register if a status interrupt was pending */
+ if (atomic_xchg(&priv->sie_pending, 0)) {
+ priv->last_status = curr = priv->read_reg(priv, C_CAN_STS_REG);
+ /* Ack status on C_CAN. D_CAN is self clearing */
+ if (priv->type != BOSCH_D_CAN)
+ priv->write_reg(priv, C_CAN_STS_REG, LEC_UNUSED);
+ } else {
+ /* no change detected ... */
+ curr = last;
+ }
/* handle state changes */
if ((curr & STATUS_EWARN) && (!(last & STATUS_EWARN))) {
@@ -1083,10 +1118,16 @@ static irqreturn_t c_can_isr(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
struct c_can_priv *priv = netdev_priv(dev);
+ int reg_int;
- if (!priv->read_reg(priv, C_CAN_INT_REG))
+ reg_int = priv->read_reg(priv, C_CAN_INT_REG);
+ if (!reg_int)
return IRQ_NONE;
+ /* save for later use */
+ if (reg_int & INT_STS_PENDING)
+ atomic_set(&priv->sie_pending, 1);
+
/* disable all interrupts and schedule the NAPI */
c_can_irq_control(priv, false);
napi_schedule(&priv->napi);
diff --git a/drivers/net/can/c_can/c_can.h b/drivers/net/can/c_can/c_can.h
index 8acdc7fa4792..d5567a7c1c6d 100644
--- a/drivers/net/can/c_can/c_can.h
+++ b/drivers/net/can/c_can/c_can.h
@@ -198,6 +198,7 @@ struct c_can_priv {
struct net_device *dev;
struct device *device;
atomic_t tx_active;
+ atomic_t sie_pending;
unsigned long tx_dir;
int last_status;
u16 (*read_reg) (const struct c_can_priv *priv, enum reg index);
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index 214a48703a4e..ffc5467a1ec2 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -1095,6 +1095,8 @@ static struct rtnl_link_ops can_link_ops __read_mostly = {
int register_candev(struct net_device *dev)
{
dev->rtnl_link_ops = &can_link_ops;
+ netif_carrier_off(dev);
+
return register_netdev(dev);
}
EXPORT_SYMBOL_GPL(register_candev);
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 35bcf97e0ce1..0056d762edee 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -210,7 +210,7 @@
#define FLEXCAN_MB_CNT_LENGTH(x) (((x) & 0xf) << 16)
#define FLEXCAN_MB_CNT_TIMESTAMP(x) ((x) & 0xffff)
-#define FLEXCAN_TIMEOUT_US (50)
+#define FLEXCAN_TIMEOUT_US (250)
#define FLEXCAN_FDCTRL_FDRATE BIT(31)
@@ -1271,6 +1271,7 @@ static int flexcan_chip_start(struct net_device *dev)
reg_mecr = flexcan_read(priv, FLEXCAN_MECR);
reg_mecr &= ~FLEXCAN_MECR_ECRWRDIS;
flexcan_write(priv, FLEXCAN_MECR, reg_mecr);
+ reg_mecr |= FLEXCAN_MECR_ECCDIS;
reg_mecr &= ~(FLEXCAN_MECR_NCEFAFRZ | FLEXCAN_MECR_HANCEI_MSK |
FLEXCAN_MECR_FANCEI_MSK);
flexcan_write(priv, FLEXCAN_MECR, reg_mecr);
diff --git a/drivers/net/can/mscan/mscan.c b/drivers/net/can/mscan/mscan.c
index acb708fc1463..0a7d818a06f3 100644
--- a/drivers/net/can/mscan/mscan.c
+++ b/drivers/net/can/mscan/mscan.c
@@ -392,13 +392,12 @@ static int mscan_rx_poll(struct napi_struct *napi, int quota)
struct net_device *dev = napi->dev;
struct mscan_regs __iomem *regs = priv->reg_base;
struct net_device_stats *stats = &dev->stats;
- int npackets = 0;
- int ret = 1;
+ int work_done = 0;
struct sk_buff *skb;
struct can_frame *frame;
u8 canrflg;
- while (npackets < quota) {
+ while (work_done < quota) {
canrflg = in_8(&regs->canrflg);
if (!(canrflg & (MSCAN_RXF | MSCAN_ERR_IF)))
break;
@@ -419,18 +418,18 @@ static int mscan_rx_poll(struct napi_struct *napi, int quota)
stats->rx_packets++;
stats->rx_bytes += frame->can_dlc;
- npackets++;
+ work_done++;
netif_receive_skb(skb);
}
- if (!(in_8(&regs->canrflg) & (MSCAN_RXF | MSCAN_ERR_IF))) {
- napi_complete(&priv->napi);
- clear_bit(F_RX_PROGRESS, &priv->flags);
- if (priv->can.state < CAN_STATE_BUS_OFF)
- out_8(&regs->canrier, priv->shadow_canrier);
- ret = 0;
+ if (work_done < quota) {
+ if (likely(napi_complete_done(&priv->napi, work_done))) {
+ clear_bit(F_RX_PROGRESS, &priv->flags);
+ if (priv->can.state < CAN_STATE_BUS_OFF)
+ out_8(&regs->canrier, priv->shadow_canrier);
+ }
}
- return ret;
+ return work_done;
}
static irqreturn_t mscan_isr(int irq, void *dev_id)
diff --git a/drivers/net/can/sja1000/peak_pcmcia.c b/drivers/net/can/sja1000/peak_pcmcia.c
index dd56133cc461..fc9f8b01ecae 100644
--- a/drivers/net/can/sja1000/peak_pcmcia.c
+++ b/drivers/net/can/sja1000/peak_pcmcia.c
@@ -487,7 +487,7 @@ static void pcan_free_channels(struct pcan_pccard *card)
if (!netdev)
continue;
- strncpy(name, netdev->name, IFNAMSIZ);
+ strlcpy(name, netdev->name, IFNAMSIZ);
unregister_sja1000dev(netdev);
diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c
index eb7173713bbc..d0435c7631ff 100644
--- a/drivers/net/can/slcan.c
+++ b/drivers/net/can/slcan.c
@@ -147,7 +147,7 @@ static void slc_bump(struct slcan *sl)
u32 tmpid;
char *cmd = sl->rbuff;
- cf.can_id = 0;
+ memset(&cf, 0, sizeof(cf));
switch (*cmd) {
case 'r':
@@ -186,8 +186,6 @@ static void slc_bump(struct slcan *sl)
else
return;
- *(u64 *) (&cf.data) = 0; /* clear payload */
-
/* RTR frames may have a dlc > 0 but they never have any data bytes */
if (!(cf.can_id & CAN_RTR_FLAG)) {
for (i = 0; i < cf.can_dlc; i++) {
@@ -344,9 +342,16 @@ static void slcan_transmit(struct work_struct *work)
*/
static void slcan_write_wakeup(struct tty_struct *tty)
{
- struct slcan *sl = tty->disc_data;
+ struct slcan *sl;
+
+ rcu_read_lock();
+ sl = rcu_dereference(tty->disc_data);
+ if (!sl)
+ goto out;
schedule_work(&sl->tx_work);
+out:
+ rcu_read_unlock();
}
/* Send a can_frame to a TTY queue. */
@@ -613,6 +618,11 @@ err_free_chan:
sl->tty = NULL;
tty->disc_data = NULL;
clear_bit(SLF_INUSE, &sl->flags);
+ slc_free_netdev(sl->dev);
+ /* do not call free_netdev before rtnl_unlock */
+ rtnl_unlock();
+ free_netdev(sl->dev);
+ return err;
err_exit:
rtnl_unlock();
@@ -638,10 +648,11 @@ static void slcan_close(struct tty_struct *tty)
return;
spin_lock_bh(&sl->lock);
- tty->disc_data = NULL;
+ rcu_assign_pointer(tty->disc_data, NULL);
sl->tty = NULL;
spin_unlock_bh(&sl->lock);
+ synchronize_rcu();
flush_work(&sl->tx_work);
/* Flush network side */
diff --git a/drivers/net/can/spi/Kconfig b/drivers/net/can/spi/Kconfig
index 148cae5871a6..249d2db7d600 100644
--- a/drivers/net/can/spi/Kconfig
+++ b/drivers/net/can/spi/Kconfig
@@ -2,9 +2,10 @@ menu "CAN SPI interfaces"
depends on SPI
config CAN_MCP251X
- tristate "Microchip MCP251x SPI CAN controllers"
+ tristate "Microchip MCP251x and MCP25625 SPI CAN controllers"
depends on HAS_DMA
---help---
- Driver for the Microchip MCP251x SPI CAN controllers.
+ Driver for the Microchip MCP251x and MCP25625 SPI CAN
+ controllers.
endmenu
diff --git a/drivers/net/can/spi/mcp251x.c b/drivers/net/can/spi/mcp251x.c
index f3f05fea8e1f..ec0b3d025867 100644
--- a/drivers/net/can/spi/mcp251x.c
+++ b/drivers/net/can/spi/mcp251x.c
@@ -1,5 +1,5 @@
/*
- * CAN bus driver for Microchip 251x CAN Controller with SPI Interface
+ * CAN bus driver for Microchip 251x/25625 CAN Controller with SPI Interface
*
* MCP2510 support and bug fixes by Christian Pellegrin
* <chripell@evolware.org>
@@ -41,7 +41,7 @@
* static struct spi_board_info spi_board_info[] = {
* {
* .modalias = "mcp2510",
- * // or "mcp2515" depending on your controller
+ * // "mcp2515" or "mcp25625" depending on your controller
* .platform_data = &mcp251x_info,
* .irq = IRQ_EINT13,
* .max_speed_hz = 2*1000*1000,
@@ -238,6 +238,7 @@ static const struct can_bittiming_const mcp251x_bittiming_const = {
enum mcp251x_model {
CAN_MCP251X_MCP2510 = 0x2510,
CAN_MCP251X_MCP2515 = 0x2515,
+ CAN_MCP251X_MCP25625 = 0x25625,
};
struct mcp251x_priv {
@@ -280,7 +281,6 @@ static inline int mcp251x_is_##_model(struct spi_device *spi) \
}
MCP251X_IS(2510);
-MCP251X_IS(2515);
static void mcp251x_clean(struct net_device *net)
{
@@ -627,7 +627,7 @@ static int mcp251x_setup(struct net_device *net, struct mcp251x_priv *priv,
static int mcp251x_hw_reset(struct spi_device *spi)
{
struct mcp251x_priv *priv = spi_get_drvdata(spi);
- u8 reg;
+ unsigned long timeout;
int ret;
/* Wait for oscillator startup timer after power up */
@@ -640,11 +640,20 @@ static int mcp251x_hw_reset(struct spi_device *spi)
/* Wait for oscillator startup timer after reset */
mdelay(MCP251X_OST_DELAY_MS);
-
- reg = mcp251x_read_reg(spi, CANSTAT);
- if ((reg & CANCTRL_REQOP_MASK) != CANCTRL_REQOP_CONF)
- return -ENODEV;
+ /* Wait for reset to finish */
+ timeout = jiffies + HZ;
+ while ((mcp251x_read_reg(spi, CANSTAT) & CANCTRL_REQOP_MASK) !=
+ CANCTRL_REQOP_CONF) {
+ usleep_range(MCP251X_OST_DELAY_MS * 1000,
+ MCP251X_OST_DELAY_MS * 1000 * 2);
+
+ if (time_after(jiffies, timeout)) {
+ dev_err(&spi->dev,
+ "MCP251x didn't enter in conf mode after reset\n");
+ return -EBUSY;
+ }
+ }
return 0;
}
@@ -821,9 +830,8 @@ static irqreturn_t mcp251x_can_ist(int irq, void *dev_id)
/* receive buffer 0 */
if (intf & CANINTF_RX0IF) {
mcp251x_hw_rx(spi, 0);
- /*
- * Free one buffer ASAP
- * (The MCP2515 does this automatically.)
+ /* Free one buffer ASAP
+ * (The MCP2515/25625 does this automatically.)
*/
if (mcp251x_is_2510(spi))
mcp251x_write_bits(spi, CANINTF, CANINTF_RX0IF, 0x00);
@@ -832,7 +840,7 @@ static irqreturn_t mcp251x_can_ist(int irq, void *dev_id)
/* receive buffer 1 */
if (intf & CANINTF_RX1IF) {
mcp251x_hw_rx(spi, 1);
- /* the MCP2515 does this automatically */
+ /* The MCP2515/25625 does this automatically. */
if (mcp251x_is_2510(spi))
clear_intf |= CANINTF_RX1IF;
}
@@ -1007,6 +1015,10 @@ static const struct of_device_id mcp251x_of_match[] = {
.compatible = "microchip,mcp2515",
.data = (void *)CAN_MCP251X_MCP2515,
},
+ {
+ .compatible = "microchip,mcp25625",
+ .data = (void *)CAN_MCP251X_MCP25625,
+ },
{ }
};
MODULE_DEVICE_TABLE(of, mcp251x_of_match);
@@ -1020,6 +1032,10 @@ static const struct spi_device_id mcp251x_id_table[] = {
.name = "mcp2515",
.driver_data = (kernel_ulong_t)CAN_MCP251X_MCP2515,
},
+ {
+ .name = "mcp25625",
+ .driver_data = (kernel_ulong_t)CAN_MCP251X_MCP25625,
+ },
{ }
};
MODULE_DEVICE_TABLE(spi, mcp251x_id_table);
@@ -1260,5 +1276,5 @@ module_spi_driver(mcp251x_can_driver);
MODULE_AUTHOR("Chris Elston <celston@katalix.com>, "
"Christian Pellegrin <chripell@evolware.org>");
-MODULE_DESCRIPTION("Microchip 251x CAN driver");
+MODULE_DESCRIPTION("Microchip 251x/25625 CAN driver");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index 5d5012337d9e..a65203e6ea5f 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -632,6 +632,7 @@ static int gs_can_open(struct net_device *netdev)
rc);
usb_unanchor_urb(urb);
+ usb_free_urb(urb);
break;
}
@@ -926,7 +927,7 @@ static int gs_usb_probe(struct usb_interface *intf,
GS_USB_BREQ_HOST_FORMAT,
USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
1,
- intf->altsetting[0].desc.bInterfaceNumber,
+ intf->cur_altsetting->desc.bInterfaceNumber,
hconf,
sizeof(*hconf),
1000);
@@ -949,7 +950,7 @@ static int gs_usb_probe(struct usb_interface *intf,
GS_USB_BREQ_DEVICE_CONFIG,
USB_DIR_IN|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
1,
- intf->altsetting[0].desc.bInterfaceNumber,
+ intf->cur_altsetting->desc.bInterfaceNumber,
dconf,
sizeof(*dconf),
1000);
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c b/drivers/net/can/usb/peak_usb/pcan_usb.c
index 838545ce468d..0e1fc6c4360e 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb.c
@@ -108,7 +108,7 @@ struct pcan_usb_msg_context {
u8 *end;
u8 rec_cnt;
u8 rec_idx;
- u8 rec_data_idx;
+ u8 rec_ts_idx;
struct net_device *netdev;
struct pcan_usb *pdev;
};
@@ -441,8 +441,8 @@ static int pcan_usb_decode_error(struct pcan_usb_msg_context *mc, u8 n,
}
if ((n & PCAN_USB_ERROR_BUS_LIGHT) == 0) {
/* no error (back to active state) */
- mc->pdev->dev.can.state = CAN_STATE_ERROR_ACTIVE;
- return 0;
+ new_state = CAN_STATE_ERROR_ACTIVE;
+ break;
}
break;
@@ -465,9 +465,9 @@ static int pcan_usb_decode_error(struct pcan_usb_msg_context *mc, u8 n,
}
if ((n & PCAN_USB_ERROR_BUS_HEAVY) == 0) {
- /* no error (back to active state) */
- mc->pdev->dev.can.state = CAN_STATE_ERROR_ACTIVE;
- return 0;
+ /* no error (back to warning state) */
+ new_state = CAN_STATE_ERROR_WARNING;
+ break;
}
break;
@@ -506,6 +506,11 @@ static int pcan_usb_decode_error(struct pcan_usb_msg_context *mc, u8 n,
mc->pdev->dev.can.can_stats.error_warning++;
break;
+ case CAN_STATE_ERROR_ACTIVE:
+ cf->can_id |= CAN_ERR_CRTL;
+ cf->data[1] = CAN_ERR_CRTL_ACTIVE;
+ break;
+
default:
/* CAN_STATE_MAX (trick to handle other errors) */
cf->can_id |= CAN_ERR_CRTL;
@@ -552,10 +557,15 @@ static int pcan_usb_decode_status(struct pcan_usb_msg_context *mc,
mc->ptr += PCAN_USB_CMD_ARGS;
if (status_len & PCAN_USB_STATUSLEN_TIMESTAMP) {
- int err = pcan_usb_decode_ts(mc, !mc->rec_idx);
+ int err = pcan_usb_decode_ts(mc, !mc->rec_ts_idx);
if (err)
return err;
+
+ /* Next packet in the buffer will have a timestamp on a single
+ * byte
+ */
+ mc->rec_ts_idx++;
}
switch (f) {
@@ -638,10 +648,13 @@ static int pcan_usb_decode_data(struct pcan_usb_msg_context *mc, u8 status_len)
cf->can_dlc = get_can_dlc(rec_len);
- /* first data packet timestamp is a word */
- if (pcan_usb_decode_ts(mc, !mc->rec_data_idx))
+ /* Only first packet timestamp is a word */
+ if (pcan_usb_decode_ts(mc, !mc->rec_ts_idx))
goto decode_failed;
+ /* Next packet in the buffer will have a timestamp on a single byte */
+ mc->rec_ts_idx++;
+
/* read data */
memset(cf->data, 0x0, sizeof(cf->data));
if (status_len & PCAN_USB_STATUSLEN_RTR) {
@@ -695,7 +708,6 @@ static int pcan_usb_decode_msg(struct peak_usb_device *dev, u8 *ibuf, u32 lbuf)
/* handle normal can frames here */
} else {
err = pcan_usb_decode_data(&mc, sl);
- mc.rec_data_idx++;
}
}
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
index 0b0302af3bd2..6cd4317fe94d 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
@@ -592,16 +592,16 @@ static int peak_usb_ndo_stop(struct net_device *netdev)
dev->state &= ~PCAN_USB_STATE_STARTED;
netif_stop_queue(netdev);
+ close_candev(netdev);
+
+ dev->can.state = CAN_STATE_STOPPED;
+
/* unlink all pending urbs and free used memory */
peak_usb_unlink_all_urbs(dev);
if (dev->adapter->dev_stop)
dev->adapter->dev_stop(dev);
- close_candev(netdev);
-
- dev->can.state = CAN_STATE_STOPPED;
-
/* can set bus off now */
if (dev->adapter->dev_set_bus) {
int err = dev->adapter->dev_set_bus(dev, 0);
@@ -774,7 +774,7 @@ static int peak_usb_create_dev(const struct peak_usb_adapter *peak_usb_adapter,
dev = netdev_priv(netdev);
/* allocate a buffer large enough to send commands */
- dev->cmd_buf = kmalloc(PCAN_USB_MAX_CMD_LEN, GFP_KERNEL);
+ dev->cmd_buf = kzalloc(PCAN_USB_MAX_CMD_LEN, GFP_KERNEL);
if (!dev->cmd_buf) {
err = -ENOMEM;
goto lbl_free_candev;
@@ -879,7 +879,7 @@ static void peak_usb_disconnect(struct usb_interface *intf)
dev_prev_siblings = dev->prev_siblings;
dev->state &= ~PCAN_USB_STATE_CONNECTED;
- strncpy(name, netdev->name, IFNAMSIZ);
+ strlcpy(name, netdev->name, IFNAMSIZ);
unregister_netdev(netdev);
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
index 7f5ec40e2b4d..40647b837b31 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
@@ -851,7 +851,7 @@ static int pcan_usb_fd_init(struct peak_usb_device *dev)
goto err_out;
/* allocate command buffer once for all for the interface */
- pdev->cmd_buffer_addr = kmalloc(PCAN_UFD_CMD_BUFFER_SIZE,
+ pdev->cmd_buffer_addr = kzalloc(PCAN_UFD_CMD_BUFFER_SIZE,
GFP_KERNEL);
if (!pdev->cmd_buffer_addr)
goto err_out_1;
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
index bbdd6058cd2f..d85fdc6949c6 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
@@ -500,7 +500,7 @@ static int pcan_usb_pro_drv_loaded(struct peak_usb_device *dev, int loaded)
u8 *buffer;
int err;
- buffer = kmalloc(PCAN_USBPRO_FCT_DRVLD_REQ_LEN, GFP_KERNEL);
+ buffer = kzalloc(PCAN_USBPRO_FCT_DRVLD_REQ_LEN, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c
index 27861c417c94..3e4416473607 100644
--- a/drivers/net/can/usb/usb_8dev.c
+++ b/drivers/net/can/usb/usb_8dev.c
@@ -1007,9 +1007,8 @@ static void usb_8dev_disconnect(struct usb_interface *intf)
netdev_info(priv->netdev, "device disconnected\n");
unregister_netdev(priv->netdev);
- free_candev(priv->netdev);
-
unlink_all_urbs(priv);
+ free_candev(priv->netdev);
}
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-04-28 17:40:13 +0000