service/sm: Slightly more efficient string name validation

We can check the end of the string first for null-termination, rather
than the beginning of the string.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/core/hle/service/sm/sm.cpp b/src/core/hle/service/sm/sm.cpp
index 2aedc93ea..9c1da361b 100644
--- a/src/core/hle/service/sm/sm.cpp
+++ b/src/core/hle/service/sm/sm.cpp
@@ -27,11 +27,11 @@ void ServiceManager::InvokeControlRequest(Kernel::HLERequestContext& context) {
 }
 
 static ResultCode ValidateServiceName(const std::string& name) {
-    if (name.size() <= 0 || name.size() > 8) {
+    if (name.empty() || name.size() > 8) {
         LOG_ERROR(Service_SM, "Invalid service name! service={}", name);
         return ERR_INVALID_NAME;
     }
-    if (name.find('\0') != std::string::npos) {
+    if (name.rfind('\0') != std::string::npos) {
         LOG_ERROR(Service_SM, "A non null terminated service was passed");
         return ERR_INVALID_NAME;
     }