diff options
| author | Insu Yun <wuninsu@gmail.com> | 2015-12-29 16:53:35 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2016-02-01 07:41:37 -0200 |
| commit | f8433226d1b3eb035693724dca786c4445221368 (patch) | |
| tree | f4ea32dbd8475c3b9ad7580e358ccd2452661fc1 | |
| parent | b68554cd76bfed57a3aac2fc4ac4c60478d90050 (diff) | |
[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>
| -rw-r--r-- | drivers/media/usb/cx231xx/cx231xx-417.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/usb/cx231xx/cx231xx-417.c b/drivers/media/usb/cx231xx/cx231xx-417.c index 48643b94e694..c9320d6c6131 100644 --- a/drivers/media/usb/cx231xx/cx231xx-417.c +++ b/drivers/media/usb/cx231xx/cx231xx-417.c @@ -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); |