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Commit a91b0c50 authored by Francesco Lavra's avatar Francesco Lavra Committed by Greg Kroah-Hartman
Browse files

cdc_acm: add reset_resume method 



Add reset resume logic to the cdc acm driver

Signed-off-by: default avatarFrancesco Lavra <francescolavra@interfree.it>
Acked-by: default avatarOliver Neukum <oliver@neukum.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent af2ac1a0

drivers/usb/class/cdc-acm.c

+18 −0
Original line number Diff line number Diff line
@@ -1460,6 +1460,23 @@ static int acm_resume(struct usb_interface *intf) 
	return rv;

}



static int acm_reset_resume(struct usb_interface *intf)

{

	struct acm *acm = usb_get_intfdata(intf);

	struct tty_struct *tty;



	mutex_lock(&acm->mutex);

	if (acm->port.count) {

		tty = tty_port_tty_get(&acm->port);

		if (tty) {

			tty_hangup(tty);

			tty_kref_put(tty);

		}

	}

	mutex_unlock(&acm->mutex);

	return acm_resume(intf);

}



#endif /* CONFIG_PM */



#define NOKIA_PCSUITE_ACM_INFO(x) \
@@ -1602,6 +1619,7 @@ static struct usb_driver acm_driver = { 
#ifdef CONFIG_PM

	.suspend =	acm_suspend,

	.resume =	acm_resume,

	.reset_resume =	acm_reset_resume,

#endif

	.id_table =	acm_ids,

#ifdef CONFIG_PM