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 c768441..f075ef3 100644
--- a/drivers/usb/gadget/ci13xxx_pci.c
+++ b/drivers/usb/gadget/ci13xxx_pci.c
@@ -51,6 +51,11 @@
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;