github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-28 10:09:10 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

usb: typec: anx7411: use devm_pm_runtime_enable()

Browse Source 
anx7411_i2c_probe() enables runtime PM before returning successfully, but
anx7411_i2c_remove() tears down the Type-C partner state, workqueue, dummy
I2C device, mux, switch and port without disabling runtime PM.

Use devm_pm_runtime_enable() so runtime PM is disabled automatically on
driver detach. Since devres action registration can fail, route that
failure through the existing probe unwind path.

This issue was identified during our ongoing static-analysis research while
reviewing kernel code.

Fixes: fe6d8a9c8e ("usb: typec: anx7411: Add Analogix PD ANX7411 support")
Cc: stable <stable@kernel.org>
Co-developed-by: Ijae Kim <ae878000@gmail.com>
Signed-off-by: Ijae Kim <ae878000@gmail.com>
Signed-off-by: Myeonghun Pak <mhun512@gmail.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260701114006.75738-1-mhun512@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Myeonghun Pak 2026-07-01 20:40:06 +09:00 committed by Greg Kroah-Hartman
parent e0f844d9d7
commit 0ef7cc27da
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/usb/typec/anx7411.c
View File

@ -1537,7 +1537,9 @@ static int anx7411_i2c_probe(struct i2c_client *client)
if (anx7411_typec_check_connection(plat))
dev_err(dev, "check status\n");
pm_runtime_enable(dev);
ret = devm_pm_runtime_enable(dev);
if (ret)
goto free_wq;
return 0;