diff options
| author | Bartosz Golaszewski <brgl@bgdev.pl> | 2022-09-20 10:18:41 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-28 12:10:27 +0300 |
| commit | bdea98b98f844bd8a983ca880893e509a8b4162f (patch) | |
| tree | f73ed6869eb6520da29aaed27af486b9b141d33f /drivers/gpio | |
| parent | bd5958ccfc451d3b61c7eb305fd53d9728791f79 (diff) | |
| download | linux-bdea98b98f844bd8a983ca880893e509a8b4162f.tar.xz | |
gpio: mockup: fix NULL pointer dereference when removing debugfs
commit b7df41a6f79dfb18ba2203f8c5f0e9c0b9b57f68 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 780cba4e30d0..876027fdefc9 100644 --- a/drivers/gpio/gpio-mockup.c +++ b/drivers/gpio/gpio-mockup.c @@ -604,9 +604,9 @@ 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); |