USB: uhci: no need to check return value of debugfs_create functions

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index f9c3947577fc0c5497e275eccaf753c6c96501c7..6218bfe54f52d9a61dc07b220cb2394374109164 100644 (file)
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -590,14 +590,10 @@ static int uhci_start(struct usb_hcd *hcd)
        init_waitqueue_head(&uhci->waitqh);
 
 #ifdef UHCI_DEBUG_OPS
-       dentry = debugfs_create_file(hcd->self.bus_name,
-                       S_IFREG|S_IRUGO|S_IWUSR, uhci_debugfs_root,
-                       uhci, &uhci_debug_operations);
-       if (!dentry) {
-               dev_err(uhci_dev(uhci), "couldn't create uhci debugfs entry\n");
-               return -ENOMEM;
-       }
-       uhci->dentry = dentry;
+       uhci->dentry = debugfs_create_file(hcd->self.bus_name,
+                                          S_IFREG|S_IRUGO|S_IWUSR,
+                                          uhci_debugfs_root, uhci,
+                                          &uhci_debug_operations);
 #endif
 
        uhci->frame = dma_zalloc_coherent(uhci_dev(uhci),
@@ -882,8 +878,6 @@ static int __init uhci_hcd_init(void)
        if (!errbuf)
                goto errbuf_failed;
        uhci_debugfs_root = debugfs_create_dir("uhci", usb_debug_root);
-       if (!uhci_debugfs_root)
-               goto debug_failed;
 #endif
 
        uhci_up_cachep = kmem_cache_create("uhci_urb_priv",
@@ -918,7 +912,6 @@ static int __init uhci_hcd_init(void)
 #if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)
        debugfs_remove(uhci_debugfs_root);
 
-debug_failed:
        kfree(errbuf);
 
 errbuf_failed: