From: Wen Yang wen.yang99@zte.com.cn
[ Upstream commit 188ba34e2bcfc9a23d301bd78e35bc1d5ad9ae5a ]
kmemdup has implemented the function that kmalloc() + memcpy(). We prefer to kmemdup rather than code opened implementation.
This issue was detected with the help of coccinelle.
Signed-off-by: Wen Yang wen.yang99@zte.com.cn CC: Tomoki Sekiyama tomoki.sekiyama@gmail.com CC: linux-kernel@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab mchehab+samsung@kernel.org Signed-off-by: Lee Jones lee.jones@linaro.org --- drivers/media/usb/siano/smsusb.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/media/usb/siano/smsusb.c b/drivers/media/usb/siano/smsusb.c index ec759f43c634..3ab72d653737 100644 --- a/drivers/media/usb/siano/smsusb.c +++ b/drivers/media/usb/siano/smsusb.c @@ -226,10 +226,9 @@ static int smsusb_sendrequest(void *context, void *buffer, size_t size) return -ENOENT; }
- phdr = kmalloc(size, GFP_KERNEL); + phdr = kmemdup(buffer, size, GFP_KERNEL); if (!phdr) return -ENOMEM; - memcpy(phdr, buffer, size);
pr_debug("sending %s(%d) size: %d\n", smscore_translate_msg(phdr->msg_type), phdr->msg_type,