evie/android_kernel_oneplus_msm8998
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staging: comedi: dt9812: do not allow attaching to unsupported devices

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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>
This commit is contained in:
H Hartley Sweeten 2013-05-14 14:36:11 -07:00 • committed by Greg Kroah-Hartman
parent d6caedf074
commit 9a054c278d
1 changed files with 6 additions and 0 deletions
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6
drivers/staging/comedi/drivers/dt9812.c
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@ -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;
}