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authorArjan van de Ven <arjan@linux.intel.com>2006-07-30 03:03:30 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-31 13:28:39 -0700
commit8e185d83398b2708f50207bc12d0e0a70bd70767 (patch)
treeb7c9e7b9151a409eb55cb3c4a60da6b8dc36cb6d /drivers/block
parent1e86240f3fd33f8052141778ad3dffe2c96184d7 (diff)
downloadop-kernel-dev-8e185d83398b2708f50207bc12d0e0a70bd70767.zip
op-kernel-dev-8e185d83398b2708f50207bc12d0e0a70bd70767.tar.gz
[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>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/pktcdvd.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index bde2c64..451b996 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -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;
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