[PATCH] 9p: fix bogus return code checks during initialization

There is a simple logic error in init_v9fs - the return code checks are
reversed.  This patch fixes the return code and adds some messages to prevent
module initialization from failing silently.

Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/9p/mux.c b/fs/9p/mux.c
index 944273c..147ceef 100644 (file)
--- a/fs/9p/mux.c
+++ b/fs/9p/mux.c
@@ -132,8 +132,10 @@ int v9fs_mux_global_init(void)
                v9fs_mux_poll_tasks[i].task = NULL;
 
        v9fs_mux_wq = create_workqueue("v9fs");
-       if (!v9fs_mux_wq)
+       if (!v9fs_mux_wq) {
+               printk(KERN_WARNING "v9fs: mux: creating workqueue failed\n");
                return -ENOMEM;
+       }
 
        return 0;
 }

diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index 0b96fae..d9b561b 100644 (file)
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -457,14 +457,19 @@ static int __init init_v9fs(void)
 
        v9fs_error_init();
 
-       printk(KERN_INFO "Installing v9fs 9P2000 file system support\n");
+       printk(KERN_INFO "Installing v9fs 9p2000 file system support\n");
 
        ret = v9fs_mux_global_init();
-       if (!ret)
+       if (ret) {
+               printk(KERN_WARNING "v9fs: starting mux failed\n");
                return ret;
+       }
        ret = register_filesystem(&v9fs_fs_type);
-       if (!ret)
+       if (ret) {
+               printk(KERN_WARNING "v9fs: registering file system failed\n");
                v9fs_mux_global_exit();
+       }
+
        return ret;
 }