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net: Fix wrong interpretation of some copy_to_user() results.
I found some places, that erroneously return the value obtained from the copy_to_user() call: if some amount of bytes were not able to get to the user (this is what this one returns) the proper behavior is to return the -EFAULT error, not that number itself. Signed-off-by: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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