From: Dan Carpenter <dan.carpenter@oracle.com>
To: kernel-janitors@vger.kernel.org
Subject: [patch] usb: chipidea: fix a NULL dereference on error
Date: Fri, 16 Aug 2013 07:34:10 +0000 [thread overview]
Message-ID: <20130816073410.GB9881@elgon.mountain> (raw)
The regulator_disable() function can't accept NULL pointers so we need
to add a check.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 6f96795..abfb1cc 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -88,7 +88,8 @@ static int host_start(struct ci_hdrc *ci)
return ret;
disable_reg:
- regulator_disable(ci->platdata->reg_vbus);
+ if (ci->platdata->reg_vbus)
+ regulator_disable(ci->platdata->reg_vbus);
put_hcd:
usb_put_hcd(hcd);
next reply other threads:[~2013-08-16 7:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-16 7:34 Dan Carpenter [this message]
2013-08-16 9:32 ` [patch] usb: chipidea: fix a NULL dereference on error Peter Chen
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