[PATCH] fix a memory leak in amdgpu_ras_feature_enable

From: Cong Liu
Date: Thu Sep 14 2023 - 05:46:43 EST


This patch fixes a memory leak in the amdgpu_ras_feature_enable() function.
The leak occurs when the function sends a command to the firmware to enable
or disable a RAS feature for a GFX block. If the command fails, the kfree()
function is not called to free the info memory.

Fixes: bf7aa8bea9cb ("drm/amdgpu: Free ras cmd input buffer properly")
Signed-off-by: Cong Liu <liucong2@xxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 8eb6f6943778..b4a8ea946410 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -802,6 +802,7 @@ int amdgpu_ras_feature_enable(struct amdgpu_device *adev,
enable ? "enable":"disable",
get_ras_block_str(head),
amdgpu_ras_is_poison_mode_supported(adev), ret);
+ kfree(info);
return ret;
}

--
2.34.1