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path: root/drivers/usb/host/uhci-hcd.c
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Diffstat (limited to 'drivers/usb/host/uhci-hcd.c')
-rw-r--r--drivers/usb/host/uhci-hcd.c44
1 files changed, 25 insertions, 19 deletions
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index 4a86b63745b..27f35e8f161 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -69,18 +69,21 @@ MODULE_PARM_DESC(ignore_oc, "ignore hardware overcurrent indications");
* show all queues in /sys/kernel/debug/uhci/[pci_addr]
* debug = 3, show all TDs in URBs when dumping
*/
-#ifdef DEBUG
-#define DEBUG_CONFIGURED 1
+#ifdef CONFIG_DYNAMIC_DEBUG
+
static int debug = 1;
module_param(debug, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Debug level");
+static char *errbuf;
#else
-#define DEBUG_CONFIGURED 0
-#define debug 0
+
+#define debug 0
+#define errbuf NULL
+
#endif
-static char *errbuf;
+
#define ERRBUF_LEN (32 * 1024)
static struct kmem_cache *uhci_up_cachep; /* urb_priv */
@@ -516,13 +519,12 @@ static void release_uhci(struct uhci_hcd *uhci)
{
int i;
- if (DEBUG_CONFIGURED) {
- spin_lock_irq(&uhci->lock);
- uhci->is_initialized = 0;
- spin_unlock_irq(&uhci->lock);
- debugfs_remove(uhci->dentry);
- }
+ spin_lock_irq(&uhci->lock);
+ uhci->is_initialized = 0;
+ spin_unlock_irq(&uhci->lock);
+
+ debugfs_remove(uhci->dentry);
for (i = 0; i < UHCI_NUM_SKELQH; i++)
uhci_free_qh(uhci, uhci->skelqh[i]);
@@ -868,14 +870,14 @@ static int __init uhci_hcd_init(void)
ignore_oc ? ", overcurrent ignored" : "");
set_bit(USB_UHCI_LOADED, &usb_hcds_loaded);
- if (DEBUG_CONFIGURED) {
- errbuf = kmalloc(ERRBUF_LEN, GFP_KERNEL);
- if (!errbuf)
- goto errbuf_failed;
- uhci_debugfs_root = debugfs_create_dir("uhci", usb_debug_root);
- if (!uhci_debugfs_root)
- goto debug_failed;
- }
+#ifdef CONFIG_DYNAMIC_DEBUG
+ errbuf = kmalloc(ERRBUF_LEN, GFP_KERNEL);
+ 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",
sizeof(struct urb_priv), 0, 0, NULL);
@@ -906,12 +908,14 @@ clean0:
kmem_cache_destroy(uhci_up_cachep);
up_failed:
+#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)
debugfs_remove(uhci_debugfs_root);
debug_failed:
kfree(errbuf);
errbuf_failed:
+#endif
clear_bit(USB_UHCI_LOADED, &usb_hcds_loaded);
return retval;
@@ -927,7 +931,9 @@ static void __exit uhci_hcd_cleanup(void)
#endif
kmem_cache_destroy(uhci_up_cachep);
debugfs_remove(uhci_debugfs_root);
+#ifdef CONFIG_DYNAMIC_DEBUG
kfree(errbuf);
+#endif
clear_bit(USB_UHCI_LOADED, &usb_hcds_loaded);
}