diff options
| author | Oleg Drokin <Oleg.Drokin@Sun.COM> | 2007-11-29 14:02:21 -0500 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2008-02-01 16:42:06 -0500 |
| commit | 29dbf546159f5701e11de26fa2da5c4a962e0f83 (patch) | |
| tree | 1dcdd1785445cbbf30a159a15b7b1d77f42c51c2 /fs/lockd | |
| parent | 406a7ea97d9dc1a9348ba92c4cd0e7c678185c4c (diff) | |
| download | linux-29dbf546159f5701e11de26fa2da5c4a962e0f83.tar.gz linux-29dbf546159f5701e11de26fa2da5c4a962e0f83.tar.xz | |
lockd: fix a leak in nlmsvc_testlock asynchronous request handling
Without the patch, there is a leakage of nlmblock structure refcount
that holds a reference nlmfile structure, that holds a reference to
struct file, when async GETFL is used (-EINPROGRESS return from
file_ops->lock()), and also in some error cases.
Fix up a style nit while we're here.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'fs/lockd')
| -rw-r--r-- | fs/lockd/svclock.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c index d120ec39bcb0..84c4d5e04ebb 100644 --- a/fs/lockd/svclock.c +++ b/fs/lockd/svclock.c @@ -501,25 +501,29 @@ nlmsvc_testlock(struct svc_rqst *rqstp, struct nlm_file *file, block, block->b_flags, block->b_fl); if (block->b_flags & B_TIMED_OUT) { nlmsvc_unlink_block(block); - return nlm_lck_denied; + ret = nlm_lck_denied; + goto out; } if (block->b_flags & B_GOT_CALLBACK) { if (block->b_fl != NULL && block->b_fl->fl_type != F_UNLCK) { lock->fl = *block->b_fl; goto conf_lock; - } - else { + } else { nlmsvc_unlink_block(block); - return nlm_granted; + ret = nlm_granted; + goto out; } } - return nlm_drop_reply; + ret = nlm_drop_reply; + goto out; } error = vfs_test_lock(file->f_file, &lock->fl); - if (error == -EINPROGRESS) - return nlmsvc_defer_lock_rqst(rqstp, block); + if (error == -EINPROGRESS) { + ret = nlmsvc_defer_lock_rqst(rqstp, block); + goto out; + } if (error) { ret = nlm_lck_denied_nolocks; goto out; |