target/linux/brcm2708/patches-4.19/950-0203-staging-vchiq_arm-Fix-platform-device-unregistration.patch

   1 From 1ada615db1b97faec9c4625ccfd2cc35d54d850a 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 @@ -3656,7 +3656,8 @@ 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         class_destroy(vchiq_class);