From: Julia Lawall Date: Thu, 1 Jul 2010 04:30:11 +0000 (-0300) Subject: V4L/DVB: drivers/media/video/gspca: Use kmemdup X-Git-Tag: v5.15~28800^2~147 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=feda79bffc19e5e1e442966853f58c3b9c7bac0b;p=mirror_ubuntu-kernels.git V4L/DVB: drivers/media/video/gspca: Use kmemdup 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/) // @@ 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); // Signed-off-by: Julia Lawall Signed-off-by: Douglas Schilling Landgraf Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/gspca/t613.c b/drivers/media/video/gspca/t613.c index f5d006b28c36..2a0f12d55e48 100644 --- a/drivers/media/video/gspca/t613.c +++ b/drivers/media/video/gspca/t613.c @@ -572,12 +572,11 @@ static void reg_w_buf(struct gspca_dev *gspca_dev, } else { u8 *tmpbuf; - tmpbuf = kmalloc(len, GFP_KERNEL); + tmpbuf = kmemdup(buffer, len, GFP_KERNEL); if (!tmpbuf) { err("Out of memory"); return; } - memcpy(tmpbuf, buffer, len); usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0), 0,