From: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Date: Fri, 11 May 2012 14:25:40 +0000 (+0300)
Subject: usb: gadget: ci13xxx_pci: guard against devices without driver_data
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1989b5ceb5aa57862ed770368ae90bf44fd13198;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

usb: gadget: ci13xxx_pci: guard against devices without driver_data

Don't try to initialize devices that don't have driver_data assigned
to their pci ids.

Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/gadget/ci13xxx_pci.c b/drivers/usb/gadget/ci13xxx_pci.c
index c76844110e36..f075ef33834f 100644
--- a/drivers/usb/gadget/ci13xxx_pci.c
+++ b/drivers/usb/gadget/ci13xxx_pci.c
@@ -51,6 +51,11 @@ static int __devinit ci13xxx_pci_probe(struct pci_dev *pdev,
 	struct resource res[3];
 	int retval = 0, nres = 2;
 
+	if (!driver) {
+		dev_err(&pdev->dev, "device doesn't provide driver data\n");
+		return -ENODEV;
+	}
+
 	retval = pci_enable_device(pdev);
 	if (retval)
 		goto done;