usb/dummy_hcd: don't probe for udc if hcd failed

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the_controller is allocated in dummy_hcd_probe() and is NULL if the
allocation failed. The probe function of the udc driver is dereferencing
this pointer and fault.
Alan Stern suggested to abort the dummy_hcd driver probing so the module
is not loaded. The is abort-on-error has been also added to the udc
driver.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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Sebastian Andrzej Siewior 2011-04-15 20:37:06 +02:00 • committed by Greg Kroah-Hartman

parent 1d15ee4cd7

commit 865835fa44

1 changed files with 20 additions and 1 deletions

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drivers/usb/gadget/dummy_hcd.c

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