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USB: at91: at91-ohci: fix set/get power 

in commit aa6e52a35 we introduce the support of overcurrent notification
but the set and get of the power without checking if the gpio is valid or not

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2011-11-12 16:46:13 +01:00 committed by Greg Kroah-Hartman
parent 5dc2470c60
commit 770f0baaee
1 changed files with 6 additions and 0 deletions
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6
drivers/usb/host/ohci-at91.c
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@ -223,6 +223,9 @@ static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int
if (port < 0 || port >= 2)
return;
if (pdata->vbus_pin[port] <= 0)
return;
gpio_set_value(pdata->vbus_pin[port], !pdata->vbus_pin_inverted ^ enable);
}
@ -231,6 +234,9 @@ static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port)
if (port < 0 || port >= 2)
return -EINVAL;
if (pdata->vbus_pin[port] <= 0)
return -EINVAL;
return gpio_get_value(pdata->vbus_pin[port]) ^ !pdata->vbus_pin_inverted;
}