Commit f8433226 authored Dec 29, 2015 by Insu Yun Committed by Mauro Carvalho Chehab Feb 01, 2016

[media] cx231xx: correctly handling failed allocation



Since kmalloc can be failed in memory pressure,
if not properly handled, NULL dereference can be happend

Signed-off-by: Insu Yun <wuninsu@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

parent b68554cd

drivers/media/usb/cx231xx/cx231xx-417.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1382,6 +1382,8 @@ static int cx231xx_bulk_copy(struct cx231xx dev, struct urb urb)
		buffer_size = urb->actual_length;

		buffer = kmalloc(buffer_size, GFP_ATOMIC);
		if (!buffer)
		return -ENOMEM;

		memcpy(buffer, dma_q->ps_head, 3);
		memcpy(buffer+3, p_buffer, buffer_size-3);