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From f5072609c720b1f50098d69e208113735f6b31fa Mon Sep 17 00:00:00 2001
From: Stefan Wahren <stefan.wahren@i2se.com>
Date: Sat, 13 Oct 2018 20:51:23 +0200
Subject: [PATCH 229/725] staging: vchiq_arm: Fix platform device
unregistration
In error case platform_device_register_data would return an ERR_PTR
instead of NULL. So we better check this before unregistration.
Fixes: 37b7b3087a2f ("staging/vc04_services: Register a platform device for the camera driver.")
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -3656,7 +3656,8 @@ failed_platform_init:
static int vchiq_remove(struct platform_device *pdev)
{
- platform_device_unregister(bcm2835_camera);
+ if (!IS_ERR(bcm2835_camera))
+ platform_device_unregister(bcm2835_camera);
vchiq_debugfs_deinit();
device_destroy(vchiq_class, vchiq_devid);
class_destroy(vchiq_class);
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