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authorMa Ling <ling.ma@intel.com>2009-04-16 17:51:25 +0800
committerDave Airlie <airlied@redhat.com>2009-04-20 10:03:46 +1000
commit77d26dc9b9805f322f5a1f6e559b18ad66205bd9 (patch)
treee09b35638a3d0fb9bd319498ec406ffd95a199eb /drivers/gpu/drm
parentd9c6f546469f33f9aa48ae5991c33da8cd535b37 (diff)
drm: clean dirty memory after device release
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>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/drm_sysfs.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index bc0c6849360..022876ae34f 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -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;
}