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USB: EHCI: log a warning if ehci-hcd is not loaded first

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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>
This commit is contained in:
Alan Stern
2008-10-02 11:48:13 -04:00
committed by Greg Kroah-Hartman
parent 2b70f07343
commit 9beeee6584
5 changed files with 29 additions and 2 deletions
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4
drivers/usb/core/hcd.c
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@@ -81,6 +81,10 @@
/*-------------------------------------------------------------------------*/
/* Keep track of which host controller drivers are loaded */
unsigned long usb_hcds_loaded;
EXPORT_SYMBOL_GPL(usb_hcds_loaded);
/* host controllers we manage */
LIST_HEAD (usb_bus_list);
EXPORT_SYMBOL_GPL (usb_bus_list);