[45/82] USB: atmel_usba_udc: force vbus_pin at -EINVAL when gpio_request failled

From: Greg KH
Date: Fri Nov 19 2010 - 17:26:33 EST


2.6.35-stable review patch. If anyone has any objections, please let us know.

------------------

From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>

commit 969affff54702785330de553b790372e261e93f9 upstream.

to ensure gpio_is_valid return false

Signed-off-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
drivers/usb/gadget/atmel_usba_udc.c | 3 +++
1 file changed, 3 insertions(+)

--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -2014,6 +2014,9 @@ static int __init usba_udc_probe(struct
} else {
disable_irq(gpio_to_irq(udc->vbus_pin));
}
+ } else {
+ /* gpio_request fail so use -EINVAL for gpio_is_valid */
+ ubc->vbus_pin = -EINVAL;
}
}



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