summaryrefslogtreecommitdiff
path: root/drivers/staging/cxt1e1/linux.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/staging/cxt1e1/linux.c')
-rw-r--r--drivers/staging/cxt1e1/linux.c28
1 files changed, 14 insertions, 14 deletions
diff --git a/drivers/staging/cxt1e1/linux.c b/drivers/staging/cxt1e1/linux.c
index 142691c8d8d1..9b483739881a 100644
--- a/drivers/staging/cxt1e1/linux.c
+++ b/drivers/staging/cxt1e1/linux.c
@@ -133,7 +133,7 @@ getuserbychan (int channum)
mch_t *ch;
ch = c4_find_chan (channum);
- return ch ? ch->user : 0;
+ return ch ? ch->user : NULL;
}
@@ -230,7 +230,7 @@ c4_wq_port_init (mpi_t *pi)
__func__, name, pi->portnum); /* RLD DEBUG */
#endif
if (!(pi->wq_port = create_singlethread_workqueue (name)))
- return ENOMEM;
+ return -ENOMEM;
return 0; /* success */
}
@@ -245,7 +245,7 @@ c4_wq_port_cleanup (mpi_t *pi)
{
destroy_workqueue (pi->wq_port); /* this also calls
* flush_workqueue() */
- pi->wq_port = 0;
+ pi->wq_port = NULL;
}
}
@@ -420,7 +420,7 @@ create_chan (struct net_device *ndev, ci_t *ci,
int ret;
if (c4_find_chan (cp->channum))
- return 0; /* channel already exists */
+ return NULL; /* channel already exists */
{
struct c4_priv *priv;
@@ -430,14 +430,14 @@ create_chan (struct net_device *ndev, ci_t *ci,
if (!priv)
{
pr_warning("%s: no memory for net_device !\n", ci->devname);
- return 0;
+ return NULL;
}
dev = alloc_hdlcdev (priv);
if (!dev)
{
pr_warning("%s: no memory for hdlc_device !\n", ci->devname);
OS_kfree (priv);
- return 0;
+ return NULL;
}
priv->ci = ci;
priv->channum = cp->channum;
@@ -496,7 +496,7 @@ create_chan (struct net_device *ndev, ci_t *ci,
pr_info("%s: create_chan[%d] registration error = %d.\n",
ci->devname, cp->channum, ret);
free_netdev (dev); /* cleanup */
- return 0; /* failed to register */
+ return NULL; /* failed to register */
}
return dev;
}
@@ -744,7 +744,7 @@ do_deluser (struct net_device *ndev, int lockit)
ch = c4_find_chan (channum);
if (ch == NULL)
return -ENOENT;
- ch->user = 0; /* will be freed, below */
+ ch->user = NULL; /* will be freed, below */
}
if (lockit)
@@ -959,7 +959,7 @@ c4_add_dev (hdw_info_t *hi, int brdno, unsigned long f0, unsigned long f1,
{
pr_warning("%s: no memory for struct net_device !\n", hi->devname);
error_flag = ENOMEM;
- return 0;
+ return NULL;
}
ci = (ci_t *)(netdev_priv(ndev));
ndev->irq = irq0;
@@ -970,7 +970,7 @@ c4_add_dev (hdw_info_t *hi, int brdno, unsigned long f0, unsigned long f1,
c4_list = ci;
ci->brdno = ci->next ? ci->next->brdno + 1 : 0;
- if (CI == 0)
+ if (!CI)
CI = ci; /* DEBUG, only board 0 usage */
strcpy (ci->devname, hi->devname);
@@ -996,7 +996,7 @@ c4_add_dev (hdw_info_t *hi, int brdno, unsigned long f0, unsigned long f1,
OS_kfree (netdev_priv(ndev));
OS_kfree (ndev);
error_flag = ENODEV;
- return 0;
+ return NULL;
}
/*************************************************************
* int request_irq(unsigned int irq,
@@ -1022,7 +1022,7 @@ c4_add_dev (hdw_info_t *hi, int brdno, unsigned long f0, unsigned long f1,
OS_kfree (netdev_priv(ndev));
OS_kfree (ndev);
error_flag = EIO;
- return 0;
+ return NULL;
}
#ifdef CONFIG_SBE_PMCC4_NCOMM
if (request_irq (irq1, &c4_ebus_interrupt, IRQF_SHARED, ndev->name, ndev))
@@ -1033,7 +1033,7 @@ c4_add_dev (hdw_info_t *hi, int brdno, unsigned long f0, unsigned long f1,
OS_kfree (netdev_priv(ndev));
OS_kfree (ndev);
error_flag = EIO;
- return 0;
+ return NULL;
}
#endif
@@ -1091,7 +1091,7 @@ c4_add_dev (hdw_info_t *hi, int brdno, unsigned long f0, unsigned long f1,
free_irq (irq0, ndev);
OS_kfree (netdev_priv(ndev));
OS_kfree (ndev);
- return 0; /* failure, error_flag is set */
+ return NULL; /* failure, error_flag is set */
}
return ndev;
}