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authorSilviu-Mihai Popescu <silviupopescu1990@gmail.com>2013-03-11 18:39:22 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-25 10:42:06 -0700
commit2451a84839187cd9d150ff1bfac4f5febbcce7a6 (patch)
tree85b69835c9a8dab587e9f60b01422ed4f318a8a9
parent5bcdf0ce2bf31b09b8707f972c193c6118385526 (diff)
parport: use kmemdup instead of kmalloc + memcpy
This replaces calls to kmalloc followed by memcpy with a single call to kmemdup. This was found via make coccicheck. Signed-off-by: Silviu-Mihai Popescu <silviupopescu1990@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/parport/parport_gsc.c4
-rw-r--r--drivers/parport/parport_sunbpp.c5
-rw-r--r--drivers/parport/procfs.c6
3 files changed, 6 insertions, 9 deletions
diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c
index 050773c36823..a5251cb5fb0c 100644
--- a/drivers/parport/parport_gsc.c
+++ b/drivers/parport/parport_gsc.c
@@ -246,14 +246,14 @@ struct parport *parport_gsc_probe_port(unsigned long base,
printk (KERN_DEBUG "parport (0x%lx): no memory!\n", base);
return NULL;
}
- ops = kmalloc (sizeof (struct parport_operations), GFP_KERNEL);
+ ops = kmemdup(&parport_gsc_ops, sizeof(struct parport_operations),
+ GFP_KERNEL);
if (!ops) {
printk (KERN_DEBUG "parport (0x%lx): no memory for ops!\n",
base);
kfree (priv);
return NULL;
}
- memcpy (ops, &parport_gsc_ops, sizeof (struct parport_operations));
priv->ctr = 0xc;
priv->ctr_writable = 0xff;
priv->dma_buf = 0;
diff --git a/drivers/parport/parport_sunbpp.c b/drivers/parport/parport_sunbpp.c
index 5c4b6a1db6ca..dffd6d0bd15b 100644
--- a/drivers/parport/parport_sunbpp.c
+++ b/drivers/parport/parport_sunbpp.c
@@ -284,12 +284,11 @@ static int bpp_probe(struct platform_device *op)
size = resource_size(&op->resource[0]);
dma = PARPORT_DMA_NONE;
- ops = kmalloc(sizeof(struct parport_operations), GFP_KERNEL);
+ ops = kmemdup(&parport_sunbpp_ops, sizeof(struct parport_operations),
+ GFP_KERNEL);
if (!ops)
goto out_unmap;
- memcpy (ops, &parport_sunbpp_ops, sizeof(struct parport_operations));
-
dprintk(("register_port\n"));
if (!(p = parport_register_port((unsigned long)base, irq, dma, ops)))
goto out_free_ops;
diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c
index 3f56bc086cb5..92ed045a5f93 100644
--- a/drivers/parport/procfs.c
+++ b/drivers/parport/procfs.c
@@ -476,10 +476,9 @@ int parport_proc_register(struct parport *port)
struct parport_sysctl_table *t;
int i;
- t = kmalloc(sizeof(*t), GFP_KERNEL);
+ t = kmemdup(&parport_sysctl_template, sizeof(*t), GFP_KERNEL);
if (t == NULL)
return -ENOMEM;
- memcpy(t, &parport_sysctl_template, sizeof(*t));
t->device_dir[0].extra1 = port;
@@ -523,10 +522,9 @@ int parport_device_proc_register(struct pardevice *device)
struct parport_device_sysctl_table *t;
struct parport * port = device->port;
- t = kmalloc(sizeof(*t), GFP_KERNEL);
+ t = kmemdup(&parport_device_sysctl_template, sizeof(*t), GFP_KERNEL);
if (t == NULL)
return -ENOMEM;
- memcpy(t, &parport_device_sysctl_template, sizeof(*t));
t->dev_dir[0].child = t->parport_dir;
t->parport_dir[0].child = t->port_dir;