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KVM: selftests: Return an 'unsigned int' from kvm_check_cap()

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Return an 'unsigned int' instead of a signed 'int' from kvm_check_cap(),
to make it more obvious that kvm_check_cap() can never return a negative
value due to its assertion that the return is ">= 0".

Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2022-05-27 15:09:52 -07:00 committed by Paolo Bonzini
parent 0326045298
commit d8ba3f14a5
3 changed files with 3 additions and 3 deletions
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2
tools/testing/selftests/kvm/include/kvm_util_base.h
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@ -167,7 +167,7 @@ extern const struct vm_guest_mode_params vm_guest_mode_params[];
int open_path_or_exit(const char *path, int flags);
int open_kvm_dev_path_or_exit(void);
int kvm_check_cap(long cap);
unsigned int kvm_check_cap(long cap);
#define __KVM_SYSCALL_ERROR(_name, _ret) \
"%s failed, rc: %i errno: %i (%s)", (_name), (_ret), errno, strerror(errno)

2
tools/testing/selftests/kvm/kvm_binary_stats_test.c
View File

@ -213,7 +213,7 @@ int main(int argc, char *argv[])
}
/* Check the extension for binary stats */
if (kvm_check_cap(KVM_CAP_BINARY_STATS_FD) <= 0) {
if (!kvm_check_cap(KVM_CAP_BINARY_STATS_FD)) {
print_skip("Binary form statistics interface is not supported");
exit(KSFT_SKIP);
}

2
tools/testing/selftests/kvm/lib/kvm_util.c
View File

@ -69,7 +69,7 @@ int open_kvm_dev_path_or_exit(void)
* Looks up and returns the value corresponding to the capability
* (KVM_CAP_*) given by cap.
*/
int kvm_check_cap(long cap)
unsigned int kvm_check_cap(long cap)
{
int ret;
int kvm_fd;