diff options
| author | Guangshuo Li <lgs201920130244@gmail.com> | 2026-09-14 17:15:44 +0800 |
|---|---|---|
| committer | Andi Shyti <andi@zenone.zhora.eu> | 2026-09-16 07:18:00 +0200 |
| commit | e0c3e9d76adbe522dd420a766ce42d03ce887c29 (patch) | |
| tree | 50802d1190176210365e3c9a344c590a54742aec /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | fd73f4a6659897191fa0d40695fe370925dd3780 (diff) | |
| download | linux-next-e0c3e9d76adbe522dd420a766ce42d03ce887c29.tar.gz linux-next-e0c3e9d76adbe522dd420a766ce42d03ce887c29.zip | |
i2c: imx: disable autosuspend on remove
i2c_imx_probe() enables runtime PM autosuspend with
pm_runtime_use_autosuspend(). The probe error path correctly undoes
this setting with pm_runtime_dont_use_autosuspend(), but the normal
remove path only disables runtime PM.
The runtime PM API requires pm_runtime_use_autosuspend() to be undone
with pm_runtime_dont_use_autosuspend() at driver exit unless runtime PM
was enabled with devm_pm_runtime_enable(). Leaving the autosuspend flag
set therefore leaves the runtime PM state incompletely cleaned up after
the driver is unbound.
Add the missing pm_runtime_dont_use_autosuspend() call to the remove
path.
This issue was found by manual code inspection.
Fixes: 588eb93ea49f ("i2c: imx: add runtime pm support to improve the performance")
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Cc: <stable@vger.kernel.org> # v4.5+
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20260914091544.1667137-1-lgs201920130244@gmail.com
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions