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authorDiego Calleja <diegocg@gmail.com>2011-09-01 10:33:57 -0400
committerDavid Sterba <dsterba@suse.cz>2011-10-20 12:10:33 -0400
commit60ccf82f5b6e26e10d41783464ca469c070c7d49 (patch)
treeb99794e4dc34d6c9f4e51e7ec4def4946055b9c5 /fs/btrfs/ioctl.c
parent84850e8d8a5ec7b9d3c47d224e9a10c9da52ff1b (diff)
btrfs: fix memory leak in btrfs_defrag_file
kmemleak found this: unreferenced object 0xffff8801b64af968 (size 512): comm "btrfs-cleaner", pid 3317, jiffies 4306810886 (age 903.272s) hex dump (first 32 bytes): 00 82 01 07 00 ea ff ff c0 83 01 07 00 ea ff ff ................ 80 82 01 07 00 ea ff ff c0 87 01 07 00 ea ff ff ................ backtrace: [<ffffffff816875cc>] kmemleak_alloc+0x5c/0xc0 [<ffffffff8114aec3>] kmem_cache_alloc_trace+0x163/0x240 [<ffffffff8127a290>] btrfs_defrag_file+0xf0/0xb20 [<ffffffff8125d9a5>] btrfs_run_defrag_inodes+0x165/0x210 [<ffffffff812479d7>] cleaner_kthread+0x177/0x190 [<ffffffff81075c7d>] kthread+0x8d/0xa0 [<ffffffff816af5f4>] kernel_thread_helper+0x4/0x10 [<ffffffffffffffff>] 0xffffffffffffffff "pages" is not always freed. Fix it removing the unnecesary additional return. Signed-off-by: Diego Calleja <diegocg@gmail.com>
Diffstat (limited to 'fs/btrfs/ioctl.c')
-rw-r--r--fs/btrfs/ioctl.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index d2b53eb8a8c2..8ccc106f4e18 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1140,9 +1140,7 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
1140 btrfs_set_super_incompat_flags(disk_super, features); 1140 btrfs_set_super_incompat_flags(disk_super, features);
1141 } 1141 }
1142 1142
1143 if (!file) 1143 ret = defrag_count;
1144 kfree(ra);
1145 return defrag_count;
1146 1144
1147out_ra: 1145out_ra:
1148 if (!file) 1146 if (!file)