提交 ce657611 编写于 作者: S Sanidhya Kashyap 提交者: Linus Torvalds

hpfs: kstrdup() out of memory handling

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: NSanidhya Kashyap <sanidhya.gatech@gmail.com>
Signed-off-by: NMikulas Patocka <mikulas@twibright.com>
Cc: stable@vger.kernel.org
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 d7b04097
...@@ -451,11 +451,14 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data) ...@@ -451,11 +451,14 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
int o; int o;
struct hpfs_sb_info *sbi = hpfs_sb(s); struct hpfs_sb_info *sbi = hpfs_sb(s);
char *new_opts = kstrdup(data, GFP_KERNEL); char *new_opts = kstrdup(data, GFP_KERNEL);
if (!new_opts)
return -ENOMEM;
sync_filesystem(s); sync_filesystem(s);
*flags |= MS_NOATIME; *flags |= MS_NOATIME;
hpfs_lock(s); hpfs_lock(s);
uid = sbi->sb_uid; gid = sbi->sb_gid; uid = sbi->sb_uid; gid = sbi->sb_gid;
umask = 0777 & ~sbi->sb_mode; umask = 0777 & ~sbi->sb_mode;
......
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