sdl2-compat: Fix wrong variable tested sensor_lock (#19)

From 4686c85baf33bce429bcd5f1de8ad42a571416e4 Mon Sep 17 00:00:00 2001
From: Sylvain Becker <[EMAIL REDACTED]>
Date: Wed, 4 Jan 2023 14:34:19 +0100
Subject: [PATCH] Fix wrong variable tested sensor_lock (#19)

---
 src/sdl2_compat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sdl2_compat.c b/src/sdl2_compat.c
index 27ecfd4..154c696 100644
--- a/src/sdl2_compat.c
+++ b/src/sdl2_compat.c
@@ -1078,7 +1078,7 @@ SDL2Compat_InitOnStartup(void)
     }
 
     joystick_lock = SDL3_CreateMutex();
-    if (sensor_lock == NULL) {
+    if (joystick_lock == NULL) {
         okay = 0;
     }