[PATCH] udf: Fix to check the return value of load_nls

[Aditya Pakki]

load_nls may fail and return an error message. The patch checks
for such a scenario and passes the error upstream.

Signed-off-by: Aditya Pakki <pakki...@umn.edu>
---
 fs/udf/super.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/udf/super.c b/fs/udf/super.c
index ffd8038ff728..1a38271de6d9 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -573,6 +573,8 @@ static int udf_parse_options(char *options, struct 
udf_options *uopt,
                                if (uopt->nls_map)
                                        unload_nls(uopt->nls_map);
                                uopt->nls_map = load_nls(args[0].from);
+                               if (!uopt->nls_map)
+                                       return 0;
                                uopt->flags |= (1 << UDF_FLAG_NLS_MAP);
                        }
                        break;
-- 
2.17.1