[ 043/136 ] fs/fscache/stats.c: fix memory leak

From: Steven Rostedt
Date: Fri May 17 2013 - 22:17:11 EST stable review patch.
If anyone has any objections, please let me know.


From: Anurup m <anurup.m@xxxxxxxxxx>

[ Upstream commit ec686c9239b4d472052a271c505d04dae84214cc ]

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@xxxxxxxxxx>
Cc: shyju pv <shyju.pv@xxxxxxxxxx>
Cc: Sanil kumar <sanil.kumar@xxxxxxxxxx>
Cc: Nataraj m <nataraj.m@xxxxxxxxxx>
Cc: Li Zefan <lizefan@xxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
fs/fscache/stats.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c
index 4765190..73c0bd7 100644
--- a/fs/fscache/stats.c
+++ b/fs/fscache/stats.c
@@ -276,5 +276,5 @@ const struct file_operations fscache_stats_fops = {
.open = fscache_stats_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = seq_release,
+ .release = single_release,

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