[PATCH] hpfs: kstrdup() memory handling

[Sanidhya Kashyap]

There is a possibility of nothing being allocated to the new_opts in
case of memory pressure, therefore return ENOMEM for such case.

Signed-off-by: Sanidhya Kashyap <sanidhya.gatech@xxxxxxxxx>
---
 fs/hpfs/super.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index 7cd00d3..885eadb 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -424,6 +424,9 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
 	int o;
 	struct hpfs_sb_info *sbi = hpfs_sb(s);
 	char *new_opts = kstrdup(data, GFP_KERNEL);
+
+	if (!new_opts)
+		return -ENOMEM;
 	
 	sync_filesystem(s);
 
-- 
2.1.0

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