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drm: clean dirty memory after device release

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In current code we register/unregister connector object by
drm_sysfs_connector_add/remove function.

However under some cases, we need to dynamically register or unregister device
multiple times, so we have to go through register -> unregister ->register
routine.

Because after device_unregister function our memory is dirty, we need to do
clean operation in order to re-register the device, otherwise the system
will crash.  The patch intends to clean device after device release.

Signed-off-by: Ma Ling <ling.ma@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Ma Ling 2009-04-16 17:51:25 +08:00 committed by Dave Airlie
parent d9c6f54646
commit 77d26dc9b9
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/drm_sysfs.c
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@ -132,6 +132,7 @@ void drm_sysfs_destroy(void)
*/
static void drm_sysfs_device_release(struct device *dev)
{
memset(dev, 0, sizeof(struct device));
return;
}