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| author |   Bartosz Golaszewski <brgl@bgdev.pl> | 2022-09-20 09:18:41 +0200 |
|---|---|---|
| committer | Bartosz Golaszewski <brgl@bgdev.pl> | 2022-09-20 16:06:42 +0200 |
| commit | b7df41a6f79dfb18ba2203f8c5f0e9c0b9b57f68 (patch) | |
| tree | b5897fbe58abeae0f90b73c43a7e2715531f2ae6 /drivers/gpio | |
| parent | Linux 6.0-rc6 (diff) | |
| download | linux-dev-b7df41a6f79dfb18ba2203f8c5f0e9c0b9b57f68.tar.xz linux-dev-b7df41a6f79dfb18ba2203f8c5f0e9c0b9b57f68.zip | |
gpio: mockup: fix NULL pointer dereference when removing debugfs
We now remove the device's debugfs entries when unbinding the driver.
This now causes a NULL-pointer dereference on module exit because the
platform devices are unregistered *after* the global debugfs directory
has been recursively removed. Fix it by unregistering the devices first.
Fixes: 303e6da99429 ("gpio: mockup: remove gpio debugfs when remove device")
Cc: Wei Yongjun <weiyongjun1@huawei.com>
Cc: stable@vger.kernel.org
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-mockup.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-mockup.c b/drivers/gpio/gpio-mockup.c index a2e505a7545c..ab89cd8ddbd8 100644 --- a/drivers/gpio/gpio-mockup.c +++ b/drivers/gpio/gpio-mockup.c @@ -597,9 +597,9 @@ static int __init gpio_mockup_init(void) static void __exit gpio_mockup_exit(void) { + gpio_mockup_unregister_pdevs(); debugfs_remove_recursive(gpio_mockup_dbg_dir); platform_driver_unregister(&gpio_mockup_driver); - gpio_mockup_unregister_pdevs(); } module_init(gpio_mockup_init); |