git.openwrt.org Git - openwrt/staging/rmilecki.git/blob

   1 From 7ba7db27d18d141973ad7eaf1f339218d81a31a4 Mon Sep 17 00:00:00 2001
   2 From: Stefan Wahren <stefan.wahren@i2se.com>
   3 Date: Sat, 13 Oct 2018 20:51:23 +0200
   4 Subject: [PATCH] staging: vchiq_arm: Fix platform device
   5  unregistration
   6
   7 In error case platform_device_register_data would return an ERR_PTR
   8 instead of NULL. So we better check this before unregistration.
   9
  10 Fixes: 37b7b3087a2f ("staging/vc04_services: Register a platform device for the camera driver.")
  11 Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
  12 ---
  13  drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 3 ++-
  14  1 file changed, 2 insertions(+), 1 deletion(-)
  15
  16 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
  17 +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
  18 @@ -3258,7 +3258,8 @@ failed_platform_init:
  19
  20  static int vchiq_remove(struct platform_device *pdev)
  21  {
  22 -       platform_device_unregister(bcm2835_camera);
  23 +       if (!IS_ERR(bcm2835_camera))
  24 +               platform_device_unregister(bcm2835_camera);
  25         vchiq_debugfs_deinit();
  26         device_destroy(vchiq_class, vchiq_devid);
  27         cdev_del(&vchiq_cdev);