Commit df101c53 authored Oct 22, 2013 by Peter Chen Committed by Greg Kroah-Hartman Oct 29, 2013

usb: chipidea: host: more enhancement when ci->hcd is NULL

Like http://marc.info/?l=linux-usb&m=138200449428874&w=2

 said:
two more things are needed to be done:

- If host_start fails, the host_stop should not be called, so we
add check that ci->hcd is not NULL.
- if the host_start fails at the beginning, we need to consider
regulator mismatch issue.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent e55f7cd2

drivers/usb/chipidea/host.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -103,15 +103,15 @@ static void host_stop(struct ci_hdrc *ci)
		if (hcd) {
		usb_remove_hcd(hcd);
		usb_put_hcd(hcd);
		}
		if (ci->platdata->reg_vbus)
		regulator_disable(ci->platdata->reg_vbus);
		}
		}


		void ci_hdrc_host_destroy(struct ci_hdrc *ci)
		{
		if (ci->role == CI_ROLE_HOST)
		if (ci->role == CI_ROLE_HOST && ci->hcd)
		host_stop(ci);
		}