ams: use R_DISCARD everywhere

stratosphere/pm/source/impl/pm_process_info.cpp

@@ -89,8 +89,8 @@ namespace ams::pm::impl {
         if (m_handle != os::InvalidNativeHandle) {
             /* Unregister the process. */
             fsprUnregisterProgram(m_process_id.value);
-            sm::manager::UnregisterProcess(m_process_id);
-            ldr::pm::UnpinProgram(m_pin_id);
+            R_DISCARD(sm::manager::UnregisterProcess(m_process_id));
+            R_DISCARD(ldr::pm::UnpinProgram(m_pin_id));
 
             /* Close the process's handle. */
             os::CloseNativeHandle(m_handle);

stratosphere/pm/source/impl/pm_process_manager.cpp

@@ -142,7 +142,7 @@ namespace ams::pm::impl {
                 R_TRY(ldr::pm::AtmospherePinProgram(std::addressof(pin_id), fixed_location, override_status));
 
                 /* If we fail after now, unpin. */
-                ON_RESULT_FAILURE { ldr::pm::UnpinProgram(pin_id); };
+                ON_RESULT_FAILURE { R_DISCARD(ldr::pm::UnpinProgram(pin_id)); };
 
                 /* Ensure we can talk to mitm services. */
                 {
@@ -486,7 +486,7 @@ namespace ams::pm::impl {
                 /* NOTE: Nintendo does not check the result of this. */
                 if (spl::IsDisabledProgramVerification()) {
                     if (hos::GetVersion() >= hos::Version_10_0_0) {
-                        ldr::pm::SetEnabledProgramVerification(false);
+                        R_DISCARD(ldr::pm::SetEnabledProgramVerification(false));
                     } else {
                         fsprSetEnabledProgramVerification(false);
                     }

stratosphere/pm/source/impl/pm_process_tracker.cpp

@@ -94,7 +94,7 @@ namespace ams::pm::impl {
         auto list = GetProcessList();
 
         /* Reset the process's signal. */
-        svc::ResetSignal(process_info->GetHandle());
+        R_DISCARD(svc::ResetSignal(process_info->GetHandle()));
 
         /* Update the process's state. */
         const svc::ProcessState old_state = process_info->GetState();