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Commit b404299f authored by Oliver Neukum's avatar Oliver Neukum Committed by Greg Kroah-Hartman
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USB: power availability check for berry_charge 



this introduces a sanity check into berry_charge to give up before
damage is done if we lack juice.

Signed-off-by: default avatarOliver Neukum <oneukum@suse.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent ff8973d9

drivers/usb/misc/berry_charge.c

+5 −0
Original line number Diff line number Diff line
@@ -123,6 +123,11 @@ static int berry_probe(struct usb_interface *intf, 
{

	struct usb_device *udev = interface_to_usbdev(intf);



	if (udev->bus_mA < 500) {

		dbg(&udev->dev, "Not enough power to charge available\n");

		return -ENODEV;

	}



	dbg(&udev->dev, "Power is set to %dmA\n",

	    udev->actconfig->desc.bMaxPower * 2);