gpio: eic-sprd: break loop when getting NULL device resource
[ Upstream commit263ade7166
] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -598,7 +598,7 @@ static int sprd_eic_probe(struct platform_device *pdev)
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*/
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*/
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res = platform_get_resource(pdev, IORESOURCE_MEM, i);
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res = platform_get_resource(pdev, IORESOURCE_MEM, i);
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if (!res)
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if (!res)
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continue;
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break;
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sprd_eic->base[i] = devm_ioremap_resource(&pdev->dev, res);
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sprd_eic->base[i] = devm_ioremap_resource(&pdev->dev, res);
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if (IS_ERR(sprd_eic->base[i]))
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if (IS_ERR(sprd_eic->base[i]))
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