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drm/amd/display: refactor gpio to allocate hw_container in constructor

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[why]
if dynamic allocation fails during gpio_open, it will cause crash due to
page fault.

[how]
handle allocation when gpio object gets created and prevent from calling
gpio_open if allocation failed

Signed-off-by: Su Sung Chung <Su.Chung@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Su Sung Chung 2019-07-08 11:31:39 -04:00 • committed by Alex Deucher
commit 91db931194
18 changed files with 245 additions and 137 deletions
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