get_warnings_count() foes fclose() using File * returned from popen(). Fix it to call pclose() as it should.
tools/testing/selftests/kvm/x86_64/mmio_warning_test x86_64/mmio_warning_test.c: In function ‘get_warnings_count’: x86_64/mmio_warning_test.c:87:9: warning: ‘fclose’ called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc] 87 | fclose(f); | ^~~~~~~~~ x86_64/mmio_warning_test.c:84:13: note: returned from ‘popen’ 84 | f = popen("dmesg | grep "WARNING:" | wc -l", "r"); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Shuah Khan skhan@linuxfoundation.org --- tools/testing/selftests/kvm/x86_64/mmio_warning_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c b/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c index 8039e1eff938..9f55ccd169a1 100644 --- a/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c +++ b/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c @@ -84,7 +84,7 @@ int get_warnings_count(void) f = popen("dmesg | grep "WARNING:" | wc -l", "r"); if (fscanf(f, "%d", &warnings) < 1) warnings = 0; - fclose(f); + pclose(f);
return warnings; }