From 263ade7166a2e589c5b605272690c155c0637dcb Mon Sep 17 00:00:00 2001
From: Chunyan Zhang <chunyan.zhang@unisoc.com>
Date: Wed, 9 Dec 2020 13:51:06 +0800
Subject: [PATCH] gpio: eic-sprd: break loop when getting NULL device resource
Git-commit: 263ade7166a2e589c5b605272690c155c0637dcb
Patch-mainline: v5.10
References: git-fixes

EIC controller have unfixed numbers of banks on different Spreadtrum SoCs,
and each bank has its own base address, the loop of getting there base
address in driver should break if the resource gotten via
platform_get_resource() is NULL already. The later ones would be all NULL
even if the loop continues.

Fixes: 25518e024e3a ("gpio: Add Spreadtrum EIC driver support")
Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
Link: https://lore.kernel.org/r/20201209055106.840100-1-zhang.lyra@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpio/gpio-eic-sprd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-eic-sprd.c b/drivers/gpio/gpio-eic-sprd.c
index ad61daf6c212..865ab2b34fdd 100644
--- a/drivers/gpio/gpio-eic-sprd.c
+++ b/drivers/gpio/gpio-eic-sprd.c
@@ -598,7 +598,7 @@ static int sprd_eic_probe(struct platform_device *pdev)
 		 */
 		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
 		if (!res)
-			continue;
+			break;
 
 		sprd_eic->base[i] = devm_ioremap_resource(&pdev->dev, res);
 		if (IS_ERR(sprd_eic->base[i]))
-- 
2.26.2