sandbox: handling out of memory

assert() only works in debug mode. So checking a successful memory
allocation should not use assert().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/sandbox/cpu/state.c b/arch/sandbox/cpu/state.c
index 1f79412..34b6fff 100644
--- a/arch/sandbox/cpu/state.c
+++ b/arch/sandbox/cpu/state.c
@@ -378,7 +378,10 @@
 
 	state->ram_size = CONFIG_SYS_SDRAM_SIZE;
 	state->ram_buf = os_malloc(state->ram_size);
-	assert(state->ram_buf);
+	if (!state->ram_buf) {
+		printf("Out of memory\n");
+		os_exit(1);
+	}
 
 	state_reset_for_test(state);
 	/*