1. Fixed compiler warnings

2. Fixed crash that occurs if db is locked

meshcore/KVM/Linux/linux_kvm.c

@@ -832,7 +832,7 @@ void* kvm_server_mainloop(void* parm)
 	Window rr, cr;
 	int rx, ry, wx, wy, rs;
 	unsigned int mr;
-	char *cursor_image = NULL,*cimage;
+	char *cimage;
 
 	int x, y, height, width, r, c, count = 0;
 	int sentHideCursor = 0;

meshcore/KVM/Linux/linux_tile.c

@@ -331,11 +331,11 @@ int getTileAt(int x, int y, void** buffer, long long *bufferSize, void *desktop,
 	}
 
 	int retval = 0;
-	int firstTime = 1;
-
 #if MAX_TILE_SIZE == 0
 	retval = calc_opt_compr_send(x, y, captureWidth, captureHeight, desktop, desktopsize, buffer, bufferSize);
 #else
+	int firstTime = 1;
+
 	//This loop is used to adjust the COMPRESSION_RATIO. This loop runs only once most of the time.
 	do {
 		//retval here is 0 if everything was good. It is > 0 if it contains the size of the jpeg that was created and not sent.