When open a device node, all entities part of the same pipeline are
powered on. If one of the entities fails to be powered on, the open
operations fails. In that case the device node entity use count must not
be incremented.
Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
---
drivers/media/video/omap3isp/isp.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/omap3isp/isp.c
b/drivers/media/video/omap3isp/isp.c
index 8190511..f4edbf0 100644
--- a/drivers/media/video/omap3isp/isp.c
+++ b/drivers/media/video/omap3isp/isp.c
@@ -663,6 +663,8 @@ int omap3isp_pipeline_pm_use(struct media_entity *entity,
int use)
/* Apply power change to connected non-nodes. */
ret = isp_pipeline_pm_power(entity, change);
+ if (ret < 0)
+ entity->use_count -= change;
mutex_unlock(&entity->parent->graph_mutex);
--
1.7.3.4
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