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| author | Shuah Khan <skhan@linuxfoundation.org> | 2021-09-15 15:28:07 -0600 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2021-09-16 12:57:11 -0600 |
| commit | 3a4f0cc693cd3d80e66a255f0bff0e2c0461eef1 (patch) | |
| tree | 29c299f0eca5be159ec6a243dad0e79f7045d7ce /tools/testing/selftests/kvm/lib | |
| parent | 39a71f712d8a13728febd8f3cb3f6db7e1fa7221 (diff) | |
selftests:kvm: fix get_trans_hugepagesz() ignoring fscanf() return warn
Fix get_trans_hugepagesz() to check fscanf() return value to get rid
of the following warning:
lib/test_util.c: In function ‘get_trans_hugepagesz’:
lib/test_util.c:138:2: warning: ignoring return value of ‘fscanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
138 | fscanf(f, "%ld", &size);
| ^~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'tools/testing/selftests/kvm/lib')
| -rw-r--r-- | tools/testing/selftests/kvm/lib/test_util.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/testing/selftests/kvm/lib/test_util.c b/tools/testing/selftests/kvm/lib/test_util.c index af1031fed97f..938cd423643e 100644 --- a/tools/testing/selftests/kvm/lib/test_util.c +++ b/tools/testing/selftests/kvm/lib/test_util.c @@ -129,13 +129,16 @@ size_t get_trans_hugepagesz(void) { size_t size; FILE *f; + int ret; TEST_ASSERT(thp_configured(), "THP is not configured in host kernel"); f = fopen("/sys/kernel/mm/transparent_hugepage/hpage_pmd_size", "r"); TEST_ASSERT(f != NULL, "Error in opening transparent_hugepage/hpage_pmd_size"); - fscanf(f, "%ld", &size); + ret = fscanf(f, "%ld", &size); + ret = fscanf(f, "%ld", &size); + TEST_ASSERT(ret < 1, "Error reading transparent_hugepage/hpage_pmd_size"); fclose(f); return size; |