[PATCH] v9fs: handle kthread_create failure, minor bugfixes
[linux-2.6.git] / fs / 9p / v9fs.c
index 519b21d..5250c42 100644 (file)
@@ -269,6 +269,7 @@ v9fs_session_init(struct v9fs_session_info *v9ses,
        int n = 0;
        int newfid = -1;
        int retval = -EINVAL;
+       struct v9fs_str *version;
 
        v9ses->name = __getname();
        if (!v9ses->name)
@@ -351,13 +352,16 @@ v9fs_session_init(struct v9fs_session_info *v9ses,
                        goto FreeFcall;
                }
 
-               /* Really should check for 9P1 and report error */
-               if (!v9fs_str_compare("9P2000.u", &fcall->params.rversion.version)) {
+               version = &fcall->params.rversion.version;
+               if (version->len==8 && !memcmp(version->str, "9P2000.u", 8)) {
                        dprintk(DEBUG_9P, "9P2000 UNIX extensions enabled\n");
                        v9ses->extended = 1;
-               } else {
+               } else if (version->len==6 && !memcmp(version->str, "9P2000", 6)) {
                        dprintk(DEBUG_9P, "9P2000 legacy mode enabled\n");
                        v9ses->extended = 0;
+               } else {
+                       retval = -EREMOTEIO;
+                       goto FreeFcall;
                }
 
                n = fcall->params.rversion.msize;
@@ -449,12 +453,17 @@ extern int v9fs_error_init(void);
 
 static int __init init_v9fs(void)
 {
+       int ret;
+
        v9fs_error_init();
 
        printk(KERN_INFO "Installing v9fs 9P2000 file system support\n");
 
-       v9fs_mux_global_init();
-       return register_filesystem(&v9fs_fs_type);
+       ret = v9fs_mux_global_init();
+       if (!ret)
+               ret = register_filesystem(&v9fs_fs_type);
+
+       return ret;
 }
 
 /**