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 <[email protected]>
---
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
[AMD Official Use Only - General]
Reviewed-by: Hawking Zhang <[email protected]>
Regards,
Hawking
-----Original Message-----
From: Cong Liu <[email protected]>
Sent: Thursday, September 14, 2023 17:46
To: Deucher, Alexander <[email protected]>; Koenig, Christian <[email protected]>; Pan, Xinhui <[email protected]>; David Airlie <[email protected]>; Daniel Vetter <[email protected]>; Yang, Stanley <[email protected]>; Zhang, Hawking <[email protected]>
Cc: Cong Liu <[email protected]>; [email protected]; [email protected]; [email protected]
Subject: [PATCH] fix a memory leak in amdgpu_ras_feature_enable
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 <[email protected]>
---
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
Applied. Thanks!
On Thu, Sep 14, 2023 at 5:53 AM Zhang, Hawking <[email protected]> wrote:
>
> [AMD Official Use Only - General]
>
> Reviewed-by: Hawking Zhang <[email protected]>
>
> Regards,
> Hawking
> -----Original Message-----
> From: Cong Liu <[email protected]>
> Sent: Thursday, September 14, 2023 17:46
> To: Deucher, Alexander <[email protected]>; Koenig, Christian <[email protected]>; Pan, Xinhui <[email protected]>; David Airlie <[email protected]>; Daniel Vetter <[email protected]>; Yang, Stanley <[email protected]>; Zhang, Hawking <[email protected]>
> Cc: Cong Liu <[email protected]>; [email protected]; [email protected]; [email protected]
> Subject: [PATCH] fix a memory leak in amdgpu_ras_feature_enable
>
> 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 <[email protected]>
> ---
> 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
>