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| author |   Andre Przywara <andre.przywara@arm.com> | 2021-03-19 16:53:26 +0000 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2021-03-23 16:36:30 +0000 |
| commit | 31c88729a7ad2b9871e6a73e491ec7223880d633 (patch) | |
| tree | 24d9b0ae2c6de1ceaa47a62e8c5e335483fc2a27 /tools | |
| parent | kselftest/arm64: mte: Fix pthread linking (diff) | |
| download | linux-dev-31c88729a7ad2b9871e6a73e491ec7223880d633.tar.xz linux-dev-31c88729a7ad2b9871e6a73e491ec7223880d633.zip | |
kselftest/arm64: mte: ksm_options: Fix fscanf warning
Out of the box Ubuntu's 20.04 compiler warns about missing return value
checks for fscanf() calls.
Make GCC happy by checking whether we actually parsed one integer.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Mark Brown <broone@kernel.org>
Link: https://lore.kernel.org/r/20210319165334.29213-4-andre.przywara@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/arm64/mte/check_ksm_options.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/testing/selftests/arm64/mte/check_ksm_options.c b/tools/testing/selftests/arm64/mte/check_ksm_options.c index 3b23c4d61d38..88c74bc46d4f 100644 --- a/tools/testing/selftests/arm64/mte/check_ksm_options.c +++ b/tools/testing/selftests/arm64/mte/check_ksm_options.c @@ -33,7 +33,10 @@ static unsigned long read_sysfs(char *str) ksft_print_msg("ERR: missing %s\n", str); return 0; } - fscanf(f, "%lu", &val); + if (fscanf(f, "%lu", &val) != 1) { + ksft_print_msg("ERR: parsing %s\n", str); + val = 0; + } fclose(f); return val; } |