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authorBartosz Golaszewski <brgl@bgdev.pl>2022-09-20 10:18:41 +0300
committerBartosz Golaszewski <brgl@bgdev.pl>2022-09-20 17:06:42 +0300
commitb7df41a6f79dfb18ba2203f8c5f0e9c0b9b57f68 (patch)
treeb5897fbe58abeae0f90b73c43a7e2715531f2ae6 /drivers/gpio
parent521a547ced6477c54b4b0cc206000406c221b4d6 (diff)
downloadlinux-b7df41a6f79dfb18ba2203f8c5f0e9c0b9b57f68.tar.xz
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.c2
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);