diff options
author | Paul Mackerras <paulus@samba.org> | 2008-03-13 15:26:33 +1100 |
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committer | Paul Mackerras <paulus@samba.org> | 2008-03-13 15:26:33 +1100 |
commit | bed04a4413376265746053be2a9cfbfc80c98ec9 (patch) | |
tree | 8f582294a655f70496cd08aedeb86de31dbad140 /kernel/marker.c | |
parent | e37c772e36a7943b2e0bd8f48312e78474c0df15 (diff) | |
parent | c463be3520065ef8c05e3cbdf946c69604e91ceb (diff) | |
download | op-kernel-dev-bed04a4413376265746053be2a9cfbfc80c98ec9.zip op-kernel-dev-bed04a4413376265746053be2a9cfbfc80c98ec9.tar.gz |
Merge branch 'linux-2.6'
Diffstat (limited to 'kernel/marker.c')
-rw-r--r-- | kernel/marker.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/kernel/marker.c b/kernel/marker.c index 50effc0..48a4ea5a 100644 --- a/kernel/marker.c +++ b/kernel/marker.c @@ -698,14 +698,12 @@ int marker_probe_unregister(const char *name, { struct marker_entry *entry; struct marker_probe_closure *old; - int ret = 0; + int ret = -ENOENT; mutex_lock(&markers_mutex); entry = get_marker(name); - if (!entry) { - ret = -ENOENT; + if (!entry) goto end; - } if (entry->rcu_pending) rcu_barrier(); old = marker_entry_remove_probe(entry, probe, probe_private); @@ -713,12 +711,15 @@ int marker_probe_unregister(const char *name, marker_update_probes(); /* may update entry */ mutex_lock(&markers_mutex); entry = get_marker(name); + if (!entry) + goto end; entry->oldptr = old; entry->rcu_pending = 1; /* write rcu_pending before calling the RCU callback */ smp_wmb(); call_rcu(&entry->rcu, free_old_closure); remove_marker(name); /* Ignore busy error message */ + ret = 0; end: mutex_unlock(&markers_mutex); return ret; |