media: staging/ipu7: fix async notifier leak on init error

Browse source

isys_notifier_init() initialises a v4l2 async notifier and then, for
each CSI-2 port, adds a remote sensor subdev to the notifier's
waiting_list via v4l2_async_nf_add_fwnode_remote(), which allocates a
sensor_async_sd descriptor and takes a fwnode reference.

If parsing or adding a later port fails, the code jumps to the
"err_parse" label, which only drops the current endpoint fwnode
reference and returns, without calling v4l2_async_nf_cleanup(). Any
descriptors already added to the notifier for earlier ports are
therefore leaked, and the caller's error path does not clean up the
notifier either.

Call v4l2_async_nf_cleanup() on the error path, matching the cleanup
already performed when v4l2_async_nf_register() fails. This is safe as
the notifier is always initialised before the loop is entered.

Fixes: a516d36bdc ("media: staging/ipu7: add IPU7 input system device driver")
Signed-off-by: Cong Nguyen <congnt264@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>

...

This commit is contained in:

Cong Nguyen 2026-07-27 18:22:39 +07:00 • committed by Sakari Ailus

parent eeafd9e121

commit 11ccf31a65

1 changed files with 1 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

drivers/staging/media/ipu7/ipu7-isys.c

View file