Revert "dmaengine: qcom_hidma: Check for driver register failure"

BugLink: https://bugs.launchpad.net/bugs/1931896
[ Upstream commit 43ed0fcf613a87dd0221ec72d1ade4d6544f2ffc ]

This reverts commit a474b3f0428d6b02a538aa10b3c3b722751cb382.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It will be fixed up "correctly" in a
later kernel change.

The original change is NOT correct, as it does not correctly unwind from
the resources that was allocated before the call to
platform_driver_register().

Cc: Aditya Pakki <pakki001@umn.edu>
Acked-By: Vinod Koul <vkoul@kernel.org>
Acked-By: Sinan Kaya <okaya@kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-51-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kelsey Skunberg <kelsey.skunberg@canonical.com>

diff --git a/drivers/dma/qcom/hidma_mgmt.c b/drivers/dma/qcom/hidma_mgmt.c
index 806ca02c52d711702793c13804b1fec4ae5ea9ad..fe87b01f7a4eb1d9c93d1df085a5eb5ec087f32a 100644 (file)
--- a/drivers/dma/qcom/hidma_mgmt.c
+++ b/drivers/dma/qcom/hidma_mgmt.c
@@ -418,8 +418,9 @@ static int __init hidma_mgmt_init(void)
                hidma_mgmt_of_populate_channels(child);
        }
 #endif
-       return platform_driver_register(&hidma_mgmt_driver);
+       platform_driver_register(&hidma_mgmt_driver);
 
+       return 0;
 }
 module_init(hidma_mgmt_init);
 MODULE_LICENSE("GPL v2");