When specifying string type mount option (e.g., iocharset)
several times in a mount, current option parsing may
cause memory leak. Hence, call kfree for previous one
in this case. Meanwhile, check memory allocation result
for it.
Signed-off-by: Chengguang Xu <cgxu...@gmx.com>
---
fs/isofs/inode.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index bc258a4..ec3fba7 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -394,7 +394,10 @@ static int parse_options(char *options, struct
iso9660_options *popt)
break;
#ifdef CONFIG_JOLIET
case Opt_iocharset:
+ kfree(popt->iocharset);
popt->iocharset = match_strdup(&args[0]);
+ if (!popt->iocharset)
+ return 0;
break;
#endif
case Opt_map_a:
--
1.8.3.1
