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Subject: [media] ivtv: steal could be NULL Author: Mauro Carvalho Chehab <[email protected]> Date: Mon Feb 22 13:27:20 2016 -0300 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 <[email protected]> drivers/media/pci/ivtv/ivtv-queue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- http://git.linuxtv.org/cgit.cgi/media_tree.git/commit/?id=4c2f7f72b8993c73724790bf2ac33cb788d1ff06 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; _______________________________________________ linuxtv-commits mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
