| Message ID | 69f2119e511302ff5a344f595c49271ef31b11e7.1456167652.git.mchehab@osg.samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/media/pci/ivtv/ivtv-queue.c b/drivers/media/pci/ivtv/ivtv-queue.c index 7fde36e6d227..2128c2a8d7fd 100644 --- a/drivers/media/pci/ivtv/ivtv-queue.c +++ b/drivers/media/pci/ivtv/ivtv-queue.c @@ -141,7 +141,7 @@ int ivtv_queue_move(struct ivtv_stream *s, struct ivtv_queue *from, struct ivtv_ spin_unlock_irqrestore(&s->qlock, flags); return -ENOMEM; } - while (bytes_available < needed_bytes) { + while (steal && bytes_available < needed_bytes) { struct ivtv_buffer *buf = list_entry(steal->list.prev, struct ivtv_buffer, list); u16 dma_xfer_cnt = buf->dma_xfer_cnt;
ivtv_flush_queues() calls ivtv_queue_move() with steal == NULL. However, part of the code assumes that steal could be not null, as pointed by smatch: drivers/media/pci/ivtv/ivtv-queue.c:145 ivtv_queue_move() error: we previously assumed 'steal' could be null (see line 138) This has the potential of causing an OOPS when the queue is flushed. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> --- drivers/media/pci/ivtv/ivtv-queue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)