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Subject[PATCH 014/115] drm/radeon: cleanup properly if mmio mapping fails
Date
3.5.7.13 -stable review patch.  If anyone has any objections, please let me know.

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

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

commit 0cd9cb76ae26a19df21abc6f94f5fff141e689c7 upstream.

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>
[ luis: adjust context ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
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 5c58d7d..c574139 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -39,8 +39,12 @@ 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;
--
1.8.1.2


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