Since kmalloc can be failed in memory pressure,
if not properly handled, NULL dereference can be happend
Signed-off-by: Insu Yun <wuni...@gmail.com>
---
drivers/media/usb/cx231xx/cx231xx-417.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/media/usb/cx231xx/cx231xx-417.c
b/drivers/media/usb/cx231xx/cx231xx-417.c
index 47a98a2..9725e4f 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);
--
1.9.1
--
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