mmc: sdhci-spear: Handle return value of platform_get_irq
platform_get_irq() can fail here and we must check its return value. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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