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authorAlan Stern <stern@rowland.harvard.edu>2008-10-02 11:48:13 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2008-10-17 14:41:03 -0700
commit9beeee6584b9aa4f9192055512411484a2a624df (patch)
tree6eec55264d86791a1d4f61bdb9158cf9c720f7ce /drivers/usb/host/uhci-hcd.c
parent2b70f07343389cb474235def00b021a645ede916 (diff)
USB: EHCI: log a warning if ehci-hcd is not loaded first
This patch (as1139) adds a warning to the system log whenever ehci-hcd is loaded after ohci-hcd or uhci-hcd. Nowadays most distributions are pretty good about not doing this; maybe the warning will help convince anyone still doing it wrong. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> [2.6.27] 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.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index 2dddb258b0d..cf5e4cf7ea4 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -955,6 +955,7 @@ static int __init uhci_hcd_init(void)
printk(KERN_INFO "uhci_hcd: " DRIVER_DESC "%s\n",
ignore_oc ? ", overcurrent ignored" : "");
+ set_bit(USB_UHCI_LOADED, &usb_hcds_loaded);
if (DEBUG_CONFIGURED) {
errbuf = kmalloc(ERRBUF_LEN, GFP_KERNEL);
@@ -987,6 +988,7 @@ debug_failed:
errbuf_failed:
+ clear_bit(USB_UHCI_LOADED, &usb_hcds_loaded);
return retval;
}
@@ -996,6 +998,7 @@ static void __exit uhci_hcd_cleanup(void)
kmem_cache_destroy(uhci_up_cachep);
debugfs_remove(uhci_debugfs_root);
kfree(errbuf);
+ clear_bit(USB_UHCI_LOADED, &usb_hcds_loaded);
}
module_init(uhci_hcd_init);