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[media] v4l2-mem2mem: clear m2m queue ready counter in v4l2_m2m_streamoff

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v4l2_m2m_streamoff drops the list of ready buffers but failed to reset the
num_rdy counter to zero. This would lead to v4l2_m2m_num_src/dst_bufs_ready
reporting wrong values after streamoff.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Philipp Zabel 2013-09-19 04:53:21 -03:00 committed by Mauro Carvalho Chehab
parent d7bb0ce888
commit 84e6809809
1 changed files with 1 additions and 0 deletions
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drivers/media/v4l2-core/v4l2-mem2mem.c
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@ -488,6 +488,7 @@ int v4l2_m2m_streamoff(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
/* Drop queue, since streamoff returns device to the same state as after
* calling reqbufs. */
INIT_LIST_HEAD(&q_ctx->rdy_queue);
q_ctx->num_rdy = 0;
spin_unlock_irqrestore(&q_ctx->rdy_spinlock, flags);
if (m2m_dev->curr_ctx == m2m_ctx) {