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gpio: eic-sprd: break loop when getting NULL device resource 

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: 25518e024e ("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>
zero-sugar-mainline-defconfig
Chunyan Zhang 2020-12-09 13:51:06 +08:00 committed by Linus Walleij
parent 77c12bf383
commit 263ade7166
1 changed files with 1 additions and 1 deletions
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2
drivers/gpio/gpio-eic-sprd.c
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@ -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]))