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authorAlan Stern <stern@rowland.harvard.edu>2010-08-05 13:12:14 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2010-08-10 14:35:45 -0700
commitb409214c683ed06c26e2cdad0be546ad11463354 (patch)
treee8274abb90ceb25877b689af00248c69a764db1a /drivers/usb/host/uhci-hcd.c
parentb3e670443b7fb8a2d29831b62b44a039c283e351 (diff)
downloadlinux-b409214c683ed06c26e2cdad0be546ad11463354.tar.bz2
USB: remove fake "address-of" expressions
Fake "address-of" expressions that evaluate to NULL generally confuse readers and can provoke compiler warnings. This patch (as1412) removes three such fake expressions, using "#ifdef"s in their place. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/uhci-hcd.c')
-rw-r--r--drivers/usb/host/uhci-hcd.c23
1 files changed, 10 insertions, 13 deletions
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index b04506036b64..f52d04db28f4 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -597,7 +597,7 @@ static int uhci_start(struct usb_hcd *hcd)
struct uhci_hcd *uhci = hcd_to_uhci(hcd);
int retval = -EBUSY;
int i;
- struct dentry *dentry;
+ struct dentry __maybe_unused *dentry;
hcd->uses_new_polling = 1;
@@ -607,18 +607,16 @@ static int uhci_start(struct usb_hcd *hcd)
INIT_LIST_HEAD(&uhci->idle_qh_list);
init_waitqueue_head(&uhci->waitqh);
- if (DEBUG_CONFIGURED) {
- 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");
- retval = -ENOMEM;
- goto err_create_debug_entry;
- }
- uhci->dentry = dentry;
+#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;
+#endif
uhci->frame = dma_alloc_coherent(uhci_dev(uhci),
UHCI_NUMFRAMES * sizeof(*uhci->frame),
@@ -732,7 +730,6 @@ err_alloc_frame_cpu:
err_alloc_frame:
debugfs_remove(uhci->dentry);
-err_create_debug_entry:
return retval;
}