* @options: options string passed from mount
* @v9ses: existing v9fs session information
*
+ * Return 0 upon success, -ERRNO upon failure
*/
-static void parse_opts(char *options, struct p9_client *clnt)
+static int parse_opts(char *opts, struct p9_client *clnt)
{
+ char *options;
char *p;
substring_t args[MAX_OPT_ARGS];
int option;
- int ret;
+ int ret = 0;
clnt->trans_mod = v9fs_default_trans();
clnt->dotu = 1;
clnt->msize = 8192;
- if (!options)
- return;
+ if (!opts)
+ return 0;
+
+ options = kstrdup(opts, GFP_KERNEL);
+ if (!options) {
+ P9_DPRINTK(P9_DEBUG_ERROR,
+ "failed to allocate copy of option string\n");
+ return -ENOMEM;
+ }
while ((p = strsep(&options, ",")) != NULL) {
int token;
continue;
token = match_token(p, tokens, args);
if (token < Opt_trans) {
- ret = match_int(&args[0], &option);
- if (ret < 0) {
+ int r = match_int(&args[0], &option);
+ if (r < 0) {
P9_DPRINTK(P9_DEBUG_ERROR,
"integer field, but no integer?\n");
+ ret = r;
continue;
}
}
continue;
}
}
+ kfree(options);
+ return ret;
}
if (!clnt)
return ERR_PTR(-ENOMEM);
+ clnt->trans = NULL;
spin_lock_init(&clnt->lock);
INIT_LIST_HEAD(&clnt->fidlist);
clnt->fidpool = p9_idpool_create();
- if (!clnt->fidpool) {
+ if (IS_ERR(clnt->fidpool)) {
err = PTR_ERR(clnt->fidpool);
clnt->fidpool = NULL;
goto error;
}
- parse_opts(options, clnt);
+ err = parse_opts(options, clnt);
+ if (err < 0)
+ goto error;
+
if (clnt->trans_mod == NULL) {
err = -EPROTONOSUPPORT;
P9_DPRINTK(P9_DEBUG_ERROR,