[media] pwc: Use kmemdup rather than duplicating its implementation
Author: Thomas Meyer <thomas@m3y3r.de>
The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.
Signed-off-by: Thomas Meyer
Signed-off-by: Mauro Carvalho Chehab
---
drivers/media/video/pwc/pwc-ctrl.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/media/video/pwc/pwc-ctrl.c b/drivers/media/video/pwc/pwc-ctrl.c
index 3977add..b42c239 100644
--- a/drivers/media/video/pwc/pwc-ctrl.c
+++ b/drivers/media/video/pwc/pwc-ctrl.c
@@ -113,10 +113,9 @@ static int _send_control_msg(struct pwc_device *pdev,
void *kbuf = NULL;
if (buflen) {
- kbuf = kmalloc(buflen, GFP_KERNEL); /* not allowed on stack */
+ kbuf = kmemdup(buf, buflen, GFP_KERNEL); /* not allowed on stack */
if (kbuf == NULL)
return -ENOMEM;
- memcpy(kbuf, buf, buflen);
}
rc = usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0), |
---
drivers/media/video/pwc/pwc-ctrl.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/media/video/pwc/pwc-ctrl.c b/drivers/media/video/pwc/pwc-ctrl.c
index 3977add..b42c239 100644
--- a/drivers/media/video/pwc/pwc-ctrl.c
+++ b/drivers/media/video/pwc/pwc-ctrl.c
@@ -113,10 +113,9 @@ static int _send_control_msg(struct pwc_device *pdev,
void *kbuf = NULL;
if (buflen) {
- kbuf = kmalloc(buflen, GFP_KERNEL); /* not allowed on stack */
+ kbuf = kmemdup(buf, buflen, GFP_KERNEL); /* not allowed on stack */
if (kbuf == NULL)
return -ENOMEM;
- memcpy(kbuf, buf, buflen);
}
rc = usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0),