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[media] pwc: Use kmemdup rather than duplicating its implementation

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The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Thomas Meyer 2011-11-17 18:43:40 -03:00 committed by Mauro Carvalho Chehab
parent 0ceaec188e
commit 6d00c9aa2b
1 changed files with 1 additions and 2 deletions
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3
drivers/media/video/pwc/pwc-ctrl.c
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@ -113,10 +113,9 @@ static int _send_control_msg(struct pwc_device *pdev,
void *kbuf = NULL; void *kbuf = NULL;
if (buflen) { if (buflen) {
kbuf = kmalloc(buflen, GFP_KERNEL); /* not allowed on stack */ kbuf = kmemdup(buf, buflen, GFP_KERNEL); /* not allowed on stack */
if (kbuf == NULL) if (kbuf == NULL)
return -ENOMEM; return -ENOMEM;
memcpy(kbuf, buf, buflen);
} }
rc = usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0), rc = usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0),