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staging: greybus: uart: fix invalid user-pointer check
authorJohan Hovold <johan@kernel.org>
Tue, 8 Nov 2016 12:31:18 +0000 (13:31 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 10 Nov 2016 13:04:12 +0000 (14:04 +0100)
commit4dfc109c7118ed8e2806c5395b9e9dd8f851f992
tree02fbadb49d1876427609d871e70f72eddf6a9e58tree | snapshot
parent52d0744d751d8f13511df15e776460bfb95bcf5ccommit | diff
staging: greybus: uart: fix invalid user-pointer check

Drop invalid user-pointer check from TIOCGSERIAL handler.

A NULL-pointer can be valid in user space and copy_to_user() takes care
of sanity checking.

Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/greybus/uart.c diff | blob | history
Domain: System / Kernel; Licenses: GPL-2.0;