[ 125/136 ] drm/radeon: cleanup properly if mmio mapping fails

Steven Rostedt
2013-05-18T03:17:12Z

[-- Attachment #1: 0125-drm-radeon-cleanup-properly-if-mmio-mapping-fails.patch --]
[-- Type: text/plain, Size: 1065 bytes --]

3.6.11.4 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@amd.com>

[ Upstream commit 0cd9cb76ae26a19df21abc6f94f5fff141e689c7 ]

If we fail to map the mmio BAR, skip driver tear down
that requires mmio.

Should fix:
https://bugzilla.kernel.org/show_bug.cgi?id=56541

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
drivers/gpu/drm/radeon/radeon_kms.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 414b4ac..e32f4c2 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -51,8 +51,12 @@ int radeon_driver_unload_kms(struct drm_device *dev)

if (rdev == NULL)
return 0;
+ if (rdev->rmmio == NULL)
+ goto done_free;
radeon_modeset_fini(rdev);
radeon_device_fini(rdev);
+
+done_free:
kfree(rdev);
dev->dev_private = NULL;
return 0;
--
1.7.10.4