diff --git a/src/soc/intel/common/block/fast_spi/fast_spi.c b/src/soc/intel/common/block/fast_spi/fast_spi.c
index e40b84493e..5c29addcc9 100644
--- a/src/soc/intel/common/block/fast_spi/fast_spi.c
+++ b/src/soc/intel/common/block/fast_spi/fast_spi.c
@@ -241,7 +241,7 @@ void fast_spi_cache_bios_region(void)
 	 * protection, so limit the cached bios region to be no more than 16MB.
 	 * */
 	bios_size = MIN(bios_size, 16 * MiB);
-	if (!bios_size)
+	if (bios_size <= 0)
 		return;
 
 	/* Round to power of two */
diff --git a/src/soc/intel/common/block/lpc/lpc_lib.c b/src/soc/intel/common/block/lpc/lpc_lib.c
index b31c799a6a..975e4300bf 100644
--- a/src/soc/intel/common/block/lpc/lpc_lib.c
+++ b/src/soc/intel/common/block/lpc/lpc_lib.c
@@ -80,7 +80,7 @@ void lpc_open_pmio_window(uint16_t base, uint16_t size)
 		/* Each IO range register can only open a 256-byte window. */
 		window_size = MIN(size, LPC_LGIR_MAX_WINDOW_SIZE);
 
-		if (!window_size)
+		if (window_size <= 0)
 			return;
 
 		/* Window size must be a power of two for the AMASK to work. */