kselftest/arm64: mte: common: Fix write() warnings
authorAndre Przywara <andre.przywara@arm.com>
Fri, 19 Mar 2021 16:53:28 +0000 (16:53 +0000)
committerCatalin Marinas <catalin.marinas@arm.com>
Wed, 24 Mar 2021 15:43:03 +0000 (15:43 +0000)
commitd302a702530b4025fbb14f20e637badce28bc741
treec6524857f9ce4cd7a098b100149026452815e1f5
parent46cb11b17c7a917e0eb5c7aa87a7bc6cda455a5e
kselftest/arm64: mte: common: Fix write() warnings

Out of the box Ubuntu's 20.04 compiler warns about missing return value
checks for write() (sys)calls.

Make GCC happy by checking whether we actually managed to write out our
buffer.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Mark Brown <broone@kernel.org>
Link: https://lore.kernel.org/r/20210319165334.29213-6-andre.przywara@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
tools/testing/selftests/arm64/mte/mte_common_util.c