From 096657b65e1ac197e20be5ce7cff6b6ca2532787 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Sat, 30 Oct 2010 17:31:14 -0400
Subject: [PATCH] locks: fix leaks on setlease errors
We're depending on setlease to free the passed-in lease on failure.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
fs/locks.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/fs/locks.c b/fs/locks.c
index 06c77734f589..63fbc41cc573 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1371,20 +1371,22 @@ int generic_setlease(struct file *filp, long arg, struct file_lock **flp)
struct inode *inode = dentry->d_inode;
int error, rdlease_count = 0, wrlease_count = 0;
+ lease = *flp;
+
+ error = -EACCES;
if ((current_fsuid() != inode->i_uid) && !capable(CAP_LEASE))
- return -EACCES;
+ goto out;
+ error = -EINVAL;
if (!S_ISREG(inode->i_mode))
- return -EINVAL;
+ goto out;
error = security_file_lock(filp, arg);
if (error)
- return error;
+ goto out;
time_out_leases(inode);
BUG_ON(!(*flp)->fl_lmops->fl_break);
- lease = *flp;
-
if (arg != F_UNLCK) {
error = -EAGAIN;
if ((arg == F_RDLCK) && (atomic_read(&inode->i_writecount) > 0))
--
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