check the return value of kzalloc before accessing the memory pointer

Signed-off-by: Hari Prasath Gujulan Elango <hguju...@visteon.com>
---
 drivers/staging/lustre/lustre/llite/llite_lib.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c 
b/drivers/staging/lustre/lustre/llite/llite_lib.c
index bf1ec27..6fa5261 100644
--- a/drivers/staging/lustre/lustre/llite/llite_lib.c
+++ b/drivers/staging/lustre/lustre/llite/llite_lib.c
@@ -292,6 +292,10 @@ static int client_common_fill_super(struct super_block 
*sb, char *md, char *dt,
                char *buf;
 
                buf = kzalloc(PAGE_CACHE_SIZE, GFP_KERNEL);
+               if (!buf) {
+                       err = -ENOMEM;
+                       goto out_md_fid;
+               }
                obd_connect_flags2str(buf, PAGE_CACHE_SIZE,
                                      valid ^ CLIENT_CONNECT_MDT_REQD, ",");
                LCONSOLE_ERROR_MSG(0x170, "Server %s does not support 
feature(s) needed for correct operation of this client (%s). Please upgrade 
server or downgrade client.\n",
-- 
1.9.1
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