From: Julia Lawall <ju...@diku.dk> Use kmemdup when some other buffer is immediately copied into the allocated region.
A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; statement S; @@ - to = \(kmalloc\|kzalloc\)(size,flag); + to = kmemdup(from,size,flag); if (to==NULL || ...) S - memcpy(to, from, size); // </smpl> Signed-off-by: Julia Lawall <ju...@diku.dk> --- drivers/media/video/tlg2300/pd-main.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff -u -p a/drivers/media/video/tlg2300/pd-main.c b/drivers/media/video/tlg2300/pd-main.c --- a/drivers/media/video/tlg2300/pd-main.c +++ b/drivers/media/video/tlg2300/pd-main.c @@ -227,12 +227,11 @@ static int firmware_download(struct usb_ fwlength = fw->size; - fwbuf = kzalloc(fwlength, GFP_KERNEL); + fwbuf = kmemdup(fw->data, fwlength, GFP_KERNEL); if (!fwbuf) { ret = -ENOMEM; goto out; } - memcpy(fwbuf, fw->data, fwlength); max_packet_size = udev->ep_out[0x1]->desc.wMaxPacketSize; log("\t\t download size : %d", (int)max_packet_size); -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
