diff --git a/drivers/mtd/spi/sunxi_spi_spl.c b/drivers/mtd/spi/sunxi_spi_spl.c
index 67c7edd92d..75023149a4 100644
--- a/drivers/mtd/spi/sunxi_spi_spl.c
+++ b/drivers/mtd/spi/sunxi_spi_spl.c
@@ -158,9 +158,10 @@ static void spi0_disable_clock(void)
 			     (1 << AHB_RESET_SPI0_SHIFT));
 }
 
-static int spi0_init(void)
+static void spi0_init(void)
 {
 	unsigned int pin_function = SUNXI_GPC_SPI0;
+
 	if (IS_ENABLED(CONFIG_MACH_SUN50I))
 		pin_function = SUN50I_GPC_SPI0;