[PATCH 5.7 170/393] drm/amdgpu: ensure 0 is returned for success in jpeg_v2_5_wait_for_idle

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From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

[ Upstream commit 57f01856645afe4c3d0f9915ee2bb043e8dd7982 ]

In the cases where adev->jpeg.num_jpeg_inst is zero or the condition
adev->jpeg.harvest_config & (1 << i) is always non-zero the variable
ret is never set to an error condition and the function returns
an uninitialized value in ret.  Since the only exit condition at
the end if the function is a success then explicitly return
0 rather than a potentially uninitialized value in ret.

Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: 14f43e8f88c5 ("drm/amdgpu: move JPEG2.5 out from VCN2.5")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c
index c04c2078a7c1f..a7fcb55babb85 100644
--- a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c
+++ b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c
@@ -462,7 +462,7 @@ static int jpeg_v2_5_wait_for_idle(void *handle)
 			return ret;
 	}
 
-	return ret;
+	return 0;
 }
 
 static int jpeg_v2_5_set_clockgating_state(void *handle,
-- 
2.25.1






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