Commit 39a71f71 authored by Shuah Khan's avatar Shuah Khan
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selftests:kvm: fix get_warnings_count() ignoring fscanf() return warn 



Fix get_warnings_count() to check fscanf() return value to get rid
of the following warning:

x86_64/mmio_warning_test.c: In function ‘get_warnings_count’:
x86_64/mmio_warning_test.c:85:2: warning: ignoring return value of ‘fscanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   85 |  fscanf(f, "%d", &warnings);
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
Acked-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
parent 8914a7a2

tools/testing/selftests/kvm/x86_64/mmio_warning_test.c

+2 −1
Original line number Diff line number Diff line
@@ -82,7 +82,8 @@ int get_warnings_count(void) 
	FILE *f;



	f = popen("dmesg | grep \"WARNING:\" | wc -l", "r");

	fscanf(f, "%d", &warnings);

	if (fscanf(f, "%d", &warnings) < 1)

		warnings = 0;

	fclose(f);



	return warnings;