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Message-Id: <1376893448-27740-1-git-send-email-maarten@treewalker.org> Date: Mon, 19 Aug 2013 08:24:08 +0200 From: Maarten ter Huurne <maarten@...ewalker.org> To: Felipe Balbi <balbi@...com> Cc: Alan Stern <stern@...land.harvard.edu>, Sergei Shtylyov <sergei.shtylyov@...entembedded.com>, linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org, Maarten ter Huurne <maarten@...ewalker.org> Subject: [PATCH] USB: musb: Avoid null pointer dereference in debug logging Since commit 511f3c53 (usb: gadget: udc-core: fix a regression during gadget driver unbinding) usb_gadget_remove_driver will pass NULL for the driver argument. Signed-off-by: Maarten ter Huurne <maarten@...ewalker.org> --- drivers/usb/musb/musb_gadget.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index ba70923..82e5386 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -1935,7 +1935,8 @@ static int musb_gadget_stop(struct usb_gadget *g, stop_activity(musb, driver); otg_set_peripheral(musb->xceiv->otg, NULL); - dev_dbg(musb->controller, "unregistering driver %s\n", driver->function); + dev_dbg(musb->controller, "unregistering driver %s\n", + driver ? driver->function : "(removed)"); musb->is_active = 0; musb->gadget_driver = NULL; -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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