9p: fix option parsing

[deliverable/linux.git] / fs / 9p / v9fs.c

diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index cf62b05e296a67af103178e0b86e673cb1d16031..6848788a13db3f708e75b9481089fe3315ebe6d5 100644 (file)
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -84,7 +84,7 @@ static const match_table_t tokens = {
 
 static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
 {
-       char *options;
+       char *options, *tmp_options;
        substring_t args[MAX_OPT_ARGS];
        char *p;
        int option = 0;
@@ -102,9 +102,10 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
        if (!opts)
                return 0;
 
-       options = kstrdup(opts, GFP_KERNEL);
-       if (!options)
+       tmp_options = kstrdup(opts, GFP_KERNEL);
+       if (!tmp_options)
                goto fail_option_alloc;
+       options = tmp_options;
 
        while ((p = strsep(&options, ",")) != NULL) {
                int token;
@@ -194,7 +195,8 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
                        continue;
                }
        }
-       kfree(options);
+
+       kfree(tmp_options);
        return ret;
 
 fail_option_alloc: