[PATCH] staging: greybus: Use gpio_is_valid()

[Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>]

Replace the manual validity checks for the GPIO with the
gpio_is_valid().

Signed-off-by: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>
---
 drivers/staging/greybus/arche-platform.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/greybus/arche-platform.c b/drivers/staging/greybus/arche-platform.c
index 83254a7..fc6bf60 100644
--- a/drivers/staging/greybus/arche-platform.c
+++ b/drivers/staging/greybus/arche-platform.c
@@ -448,9 +448,9 @@ static int arche_platform_probe(struct platform_device *pdev)
 	arche_pdata->svc_reset_gpio = of_get_named_gpio(np,
 							"svc,reset-gpio",
 							0);
-	if (arche_pdata->svc_reset_gpio < 0) {
+	if (!gpio_is_valid(arche_pdata->svc_reset_gpio)) {
 		dev_err(dev, "failed to get reset-gpio\n");
-		return arche_pdata->svc_reset_gpio;
+		return -ENODEV;
 	}
 	ret = devm_gpio_request(dev, arche_pdata->svc_reset_gpio, "svc-reset");
 	if (ret) {
@@ -468,9 +468,9 @@ static int arche_platform_probe(struct platform_device *pdev)
 	arche_pdata->svc_sysboot_gpio = of_get_named_gpio(np,
 							  "svc,sysboot-gpio",
 							  0);
-	if (arche_pdata->svc_sysboot_gpio < 0) {
+	if (!gpio_is_valid(arche_pdata->svc_sysboot_gpio)) {
 		dev_err(dev, "failed to get sysboot gpio\n");
-		return arche_pdata->svc_sysboot_gpio;
+		return -ENODEV;
 	}
 	ret = devm_gpio_request(dev, arche_pdata->svc_sysboot_gpio, "sysboot0");
 	if (ret) {
@@ -487,9 +487,9 @@ static int arche_platform_probe(struct platform_device *pdev)
 	arche_pdata->svc_refclk_req = of_get_named_gpio(np,
 							"svc,refclk-req-gpio",
 							0);
-	if (arche_pdata->svc_refclk_req < 0) {
+	if (!gpio_is_valid(arche_pdata->svc_refclk_req)) {
 		dev_err(dev, "failed to get svc clock-req gpio\n");
-		return arche_pdata->svc_refclk_req;
+		return -ENODEV;
 	}
 	ret = devm_gpio_request(dev, arche_pdata->svc_refclk_req,
 				"svc-clk-req");
-- 
1.9.1

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