SDL: os2joystick: fix uninitialized use of local var 'maxdevs'

SDL Commits
1 
From b9d98331c59f6d88818cb777368d0b6565aaefa3 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Sun, 9 Jan 2022 20:33:32 +0300
Subject: [PATCH] os2joystick: fix uninitialized use of local var 'maxdevs'

---
 src/joystick/os2/SDL_os2joystick.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/joystick/os2/SDL_os2joystick.c b/src/joystick/os2/SDL_os2joystick.c
index 5d39df84945..00b7fc554d2 100644
--- a/src/joystick/os2/SDL_os2joystick.c
+++ b/src/joystick/os2/SDL_os2joystick.c
@@ -184,6 +184,7 @@ static int OS2_JoystickInit(void)
 		joyPortClose(&hJoyPort);
 		return SDL_SetError("Could not read joystick port.");
 	}
+	maxdevs = 0;
 	if (stGameParms.useA != 0) maxdevs++;
 	if (stGameParms.useB != 0) maxdevs++;
 	if (maxdevs > MAX_JOYSTICKS) maxdevs = MAX_JOYSTICKS;