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HID: intel-thc-hid: intel-quicki2c: fix autosuspend cleanup during teardown

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quicki2c_probe() calls pm_runtime_use_autosuspend(), but
quicki2c_remove() does not call the matching
pm_runtime_dont_use_autosuspend() during teardown.

If the autosuspend delay is set to a negative value while autosuspend
is enabled, the runtime PM core increments usage_count to prevent
runtime suspend. Without calling pm_runtime_dont_use_autosuspend()
during teardown, this reference is not dropped.

The documentation for pm_runtime_use_autosuspend() also notes that it
is important to undo it with pm_runtime_dont_use_autosuspend() at
driver exit time, unless runtime PM was initially enabled with
devm_pm_runtime_enable().

Add the missing pm_runtime_dont_use_autosuspend() call to the driver
remove path.

This issue was found by manual code inspection.

Fixes: 5f420e8215 ("HID: intel-thc-hid: intel-quicki2c: Add PM implementation")
Cc: stable@vger.kernel.org
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Reviewed-by: Even Xu <even.xu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
This commit is contained in:
Guangshuo Li 2026-08-08 22:57:48 +08:00 committed by Jiri Kosina
parent c92693f3ed
commit 42a941e394
1 changed files with 1 additions and 0 deletions
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1
drivers/hid/intel-thc-hid/intel-quicki2c/pci-quicki2c.c
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@ -774,6 +774,7 @@ static void quicki2c_remove(struct pci_dev *pdev)
quicki2c_hid_remove(qcdev);
quicki2c_dma_deinit(qcdev);
pm_runtime_dont_use_autosuspend(qcdev->dev);
pm_runtime_get_noresume(qcdev->dev);
quicki2c_dev_deinit(qcdev);