diff --git a/llama-cpp-2/src/lib.rs b/llama-cpp-2/src/lib.rs
index 454fe811..15c504a4 100644
--- a/llama-cpp-2/src/lib.rs
+++ b/llama-cpp-2/src/lib.rs
@@ -115,7 +115,7 @@ pub fn llama_time_us() -> i64 {
 /// assert!(max_devices >= 0);
 /// ```
 #[must_use]
-pub fn max_devices() -> c_int {
+pub fn max_devices() -> usize {
     unsafe { llama_cpp_sys_2::llama_max_devices() }
 }
 
diff --git a/llama-cpp-sys-2/llama.cpp b/llama-cpp-sys-2/llama.cpp
index e8dc55d0..1cfb5372 160000
--- a/llama-cpp-sys-2/llama.cpp
+++ b/llama-cpp-sys-2/llama.cpp
@@ -1 +1 @@
-Subproject commit e8dc55d0065d076d4c20f3c4bfca562701b4edfe
+Subproject commit 1cfb5372cf5707c8ec6dde7c874f4a44a6c4c915