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drm/sysfs: Do not drop device reference twice

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device_unregister() already drops its reference to the struct device, so
explicitly calling put_device() before device_unregister() can cause the
device to have been freed before it can be unregistered.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Thierry Reding 2013-10-30 11:59:05 +01:00 committed by Dave Airlie
parent be51e4a781
commit 9d6104e017
1 changed files with 0 additions and 2 deletions
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2
drivers/gpu/drm/drm_sysfs.c
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@ -439,7 +439,6 @@ err_out_files:
device_remove_file(connector->kdev, &connector_attrs_opt1[i]); device_remove_file(connector->kdev, &connector_attrs_opt1[i]);
for (i = 0; i < attr_cnt; i++) for (i = 0; i < attr_cnt; i++)
device_remove_file(connector->kdev, &connector_attrs[i]); device_remove_file(connector->kdev, &connector_attrs[i]);
put_device(connector->kdev);
device_unregister(connector->kdev); device_unregister(connector->kdev);
out: out:
@ -472,7 +471,6 @@ void drm_sysfs_connector_remove(struct drm_connector *connector)
for (i = 0; i < ARRAY_SIZE(connector_attrs); i++) for (i = 0; i < ARRAY_SIZE(connector_attrs); i++)
device_remove_file(connector->kdev, &connector_attrs[i]); device_remove_file(connector->kdev, &connector_attrs[i]);
sysfs_remove_bin_file(&connector->kdev->kobj, &edid_attr); sysfs_remove_bin_file(&connector->kdev->kobj, &edid_attr);
put_device(connector->kdev);
device_unregister(connector->kdev); device_unregister(connector->kdev);
connector->kdev = NULL; connector->kdev = NULL;
} }