media: vb2: Fix a bug about unnecessary calls to queue cancel and free

Currently, there's a logic with checks if *count is non-zero,
q->num_buffers is zero and q->memory is different than memory.

That's flawed when the device is initialized, or after the
queues are freed, as it does, unnecessary calls to
__vb2_queue_cancel() and  __vb2_queue_free().

That can be avoided by making sure that q->memory is set to
VB2_MEMORY_UNKNOWN at vb2_core_queue_init(), and adding such
check at the loop.

[[email protected]: fix checkpatch issues and improve the
 patch, by setting q->memory to zero at vb2_core_queue_init]

Signed-off-by: Satendra Singh Thakur <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Acked-by: Sakari Ailus <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

0 files changed, 0 insertions, 0 deletions