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[PATCH] lockdep: annotate pktcdvd natural device hierarchy 

The pkt_*_dev functions operate on not-this-blockdevice, and that is
sufficiently checked at setup time.  As a result there is a natural
hierarchy, which needs nesting annotations

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Peter Osterlund <petero2@telia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Arjan van de Ven 2006-07-30 03:03:30 -07:00 committed by Linus Torvalds
parent 1e86240f3f
commit 8e185d8339
1 changed files with 3 additions and 3 deletions
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6
drivers/block/pktcdvd.c
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@ -2577,19 +2577,19 @@ static int pkt_ctl_ioctl(struct inode *inode, struct file *file, unsigned int cm
case PKT_CTRL_CMD_SETUP:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
mutex_lock(&ctl_mutex);
mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
ret = pkt_setup_dev(&ctrl_cmd);
mutex_unlock(&ctl_mutex);
break;
case PKT_CTRL_CMD_TEARDOWN:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
mutex_lock(&ctl_mutex);
mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
ret = pkt_remove_dev(&ctrl_cmd);
mutex_unlock(&ctl_mutex);
break;
case PKT_CTRL_CMD_STATUS:
mutex_lock(&ctl_mutex);
mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
pkt_get_status(&ctrl_cmd);
mutex_unlock(&ctl_mutex);
break;