[PATCH] orangefs: fix memory leak of string 'new' on exit path

From: Colin King
Date: Fri Dec 02 2016 - 10:18:40 EST


From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

allocates string 'new' is not free'd on the exit path when
cdm_element_count <= 0. Fix this by kfree'ing it.

Fixes CoverityScan CID#1375923 "Resource Leak"

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
fs/orangefs/orangefs-debugfs.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/orangefs/orangefs-debugfs.c b/fs/orangefs/orangefs-debugfs.c
index 38887cc..b5dbc9c 100644
--- a/fs/orangefs/orangefs-debugfs.c
+++ b/fs/orangefs/orangefs-debugfs.c
@@ -671,8 +671,10 @@ int orangefs_prepare_debugfs_help_string(int at_boot)
*/
cdm_element_count =
orangefs_prepare_cdm_array(client_debug_array_string);
- if (cdm_element_count <= 0)
+ if (cdm_element_count <= 0) {
+ kfree(new);
goto out;
+ }

for (i = 0; i < cdm_element_count; i++) {
strlcat(new, "\t", string_size);
--
2.10.2