diff --git a/drivers/spi/spi-oc-tiny.c b/drivers/spi/spi-oc-tiny.c
index 432e66e..cb2e284 100644
--- a/drivers/spi/spi-oc-tiny.c
+++ b/drivers/spi/spi-oc-tiny.c
@@ -54,7 +54,7 @@
 	unsigned int txc, rxc;
 	const u8 *txp;
 	u8 *rxp;
-	unsigned int gpio_cs_count;
+	int gpio_cs_count;
 	int *gpio_cs;
 };
 
@@ -74,7 +74,7 @@
 {
 	struct tiny_spi *hw = tiny_spi_to_hw(spi);
 
-	if (hw->gpio_cs_count) {
+	if (hw->gpio_cs_count > 0) {
 		gpio_set_value(hw->gpio_cs[spi->chip_select],
 			(spi->mode & SPI_CS_HIGH) ? is_active : !is_active);
 	}
@@ -254,7 +254,7 @@
 	if (!np)
 		return 0;
 	hw->gpio_cs_count = of_gpio_count(np);
-	if (hw->gpio_cs_count) {
+	if (hw->gpio_cs_count > 0) {
 		hw->gpio_cs = devm_kzalloc(&pdev->dev,
 				hw->gpio_cs_count * sizeof(unsigned int),
 				GFP_KERNEL);
@@ -352,7 +352,7 @@
 			goto exit_gpio;
 		gpio_direction_output(hw->gpio_cs[i], 1);
 	}
-	hw->bitbang.master->num_chipselect = max(1U, hw->gpio_cs_count);
+	hw->bitbang.master->num_chipselect = max(1, hw->gpio_cs_count);
 
 	/* register our spi controller */
 	err = spi_bitbang_start(&hw->bitbang);