[PATCH 1/1] V4L/DVB (5123): Buf_qbuf: fix: videobuf_queue->stream corruption and lockup
From: Oleg Nesterov <[EMAIL PROTECTED]>
We are doing ->buf_prepare(buf) before adding buf to q->stream list. This
means that videobuf_qbuf() should not try to re-add a STATE_PREPARED buffer.
Signed-off-by: Oleg Nesterov <[EMAIL PROTECTED]>
Signed-off-by: Mauro Carvalho Chehab <[EMAIL PROTECTED]>
---
drivers/media/video/video-buf.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/video-buf.c b/drivers/media/video/video-buf.c
index 635d102..6504a58 100644
--- a/drivers/media/video/video-buf.c
+++ b/drivers/media/video/video-buf.c
@@ -700,6 +700,7 @@ videobuf_qbuf(struct videobuf_queue *q,
goto done;
}
if (buf->state == STATE_QUEUED ||
+ buf->state == STATE_PREPARED ||
buf->state == STATE_ACTIVE) {
dprintk(1,"qbuf: buffer is already queued or active.\n");
goto done;
-
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[PATCH 1/1] V4L/DVB (5123): Buf_qbuf: fix: videobuf_queue-stream corruption and lockup
From: Oleg Nesterov [EMAIL PROTECTED]
We are doing -buf_prepare(buf) before adding buf to q-stream list. This
means that videobuf_qbuf() should not try to re-add a STATE_PREPARED buffer.
Signed-off-by: Oleg Nesterov [EMAIL PROTECTED]
Signed-off-by: Mauro Carvalho Chehab [EMAIL PROTECTED]
---
drivers/media/video/video-buf.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/video-buf.c b/drivers/media/video/video-buf.c
index 635d102..6504a58 100644
--- a/drivers/media/video/video-buf.c
+++ b/drivers/media/video/video-buf.c
@@ -700,6 +700,7 @@ videobuf_qbuf(struct videobuf_queue *q,
goto done;
}
if (buf-state == STATE_QUEUED ||
+ buf-state == STATE_PREPARED ||
buf-state == STATE_ACTIVE) {
dprintk(1,qbuf: buffer is already queued or active.\n);
goto done;
-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
