| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.4 178/214] drm/radeon: cleanup properly if mmio mapping fails | Date | Wed, 4 Jun 2014 21:19:01 -0700 |
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3.4-stable review patch. If anyone has any objections, please let me know.
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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> [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Cc: Weng Meiling <wengmeiling.weng@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/gpu/drm/radeon/radeon_kms.c | 4 ++++ 1 file changed, 4 insertions(+)
--- 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_ 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;
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