diff mbox series

[v5.10,1/1] drm/amdgpu: add error handling for drm_fb_helper_initial_config

Message ID 20230312135053.7218-1-listdansp@mail.ru
State New
Headers
Series [v5.10,1/1] drm/amdgpu: add error handling for drm_fb_helper_initial_config |

Commit Message

Danila Chernetsov March 12, 2023, 1:50 p.m. UTC 
  The type of return value of drm_fb_helper_initial_config is int, 
which may return wrong result, so we add error handling for it 
to reclaim memory resource, and return when an error occurs.          

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: d38ceaf99ed0 (drm/amdgpu: add core driver (v4))
Signed-off-by: Danila Chernetsov <listdansp@mail.ru>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
index 43f29ee0e3b0..e445a2c9f569 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
@@ -348,8 +348,17 @@  int amdgpu_fbdev_init(struct amdgpu_device *adev)
 	if (!amdgpu_device_has_dc_support(adev))
 		drm_helper_disable_unused_functions(adev_to_drm(adev));
 
-	drm_fb_helper_initial_config(&rfbdev->helper, bpp_sel);
-	return 0;
+	ret = drm_fb_helper_initial_config(&rfbdev->helper, bpp_sel);
+	if (ret)
+		goto fini;
+
+	return 0;
+
+fini:
+	drm_fb_helper_fini(&rfbdev->helper);
+
+	kfree(rfbdev);
+	return ret;
 }
 
 void amdgpu_fbdev_fini(struct amdgpu_device *adev)