Commit 9a054c27 authored May 14, 2013 by H Hartley Sweeten Committed by Greg Kroah-Hartman May 16, 2013

staging: comedi: dt9812: do not allow attaching to unsupported devices



The DT9812 is part of the ECONseries of USB Data Acquisition Modules.
This driver only supports the DT9812-10V and DT9812-2.5V versions of
the module. Do not attach to the device if an unsupported module is
detected.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent d6caedf0

drivers/staging/comedi/drivers/dt9812.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -768,6 +768,12 @@ static int dt9812_reset_device(struct comedi_device *dev)
		dev_info(dev->class_dev, "USB DT9812 (%4.4x.%4.4x.%4.4x) #0x%8.8x\n",
		vendor, product, devpriv->device, serial);

		if (devpriv->device != DT9812_DEVID_DT9812_10 &&
		devpriv->device != DT9812_DEVID_DT9812_2PT5) {
		dev_err(dev->class_dev, "Unsupported device!\n");
		return -EINVAL;
		}

		return 0;
		}

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