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SubjectRe: [PATCH] char: ppdev: check if ioctl argument is present and valid
On Thu, Oct 08, 2020 at 11:57:13PM +0530, Harshal Chaudhari wrote:
> Checking the argument passed to the ioctl is valid
> or not. if not then return -EINVAL.

Along the the comments that Arnd made, this is not the correct value to
be returning from an ioctl when you don't pass in the correct command.

And it doesn't match what your patch says, please be consistent.

And do you have this device to be able to test your changes?

thanks,

greg k-h

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