[ 053/104] fs/fscache/stats.c: fix memory leak

Greg Kroah-Hartman
2013-05-06T23:29:14Z

From: Anurup m <anurup.m@huawei.com>

commit ec686c9239b4d472052a271c505d04dae84214cc upstream.

There is a kernel memory leak observed when the proc file
/proc/fs/fscache/stats is read.

The reason is that in fscache_stats_open, single_open is called and the
respective release function is not called during release. Hence fix
with correct release function - single_release().

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=57101

Signed-off-by: Anurup m <anurup.m@huawei.com>
Cc: shyju pv <shyju.pv@huawei.com>
Cc: Sanil kumar <sanil.kumar@huawei.com>
Cc: Nataraj m <nataraj.m@huawei.com>
Cc: Li Zefan <lizefan@huawei.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
fs/fscache/stats.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/fscache/stats.c
+++ b/fs/fscache/stats.c
@@ -287,5 +287,5 @@ const struct file_operations fscache_sta
.open = fscache_stats_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = seq_release,
+ .release = single_release,
};