selftests: arm64: Check fread return value in exec_target

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Fix -Wunused-result warning generated when compiled with gcc 13.3.0,
by checking fread's return value and handling errors, preventing
potential failures when reading from stdin.

Fixes compiler warning:
warning: ignoring return value of 'fread' declared with attribute
'warn_unused_result' [-Wunused-result]

Fixes: 806a15b254 ("kselftests/arm64: add PAuth test for whether exec() changes keys")

Signed-off-by: Bala-Vignesh-Reddy <reddybalavignesh9979@gmail.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>

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Bala-Vignesh-Reddy 2025-08-08 13:38:30 +05:30 • committed by Will Deacon

parent 8f5ae30d69

commit a679e5683d

1 changed files with 6 additions and 1 deletions

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tools/testing/selftests/arm64/pauth/exec_target.c

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