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Zhong Jiang authored
Fixes the following sparse warning: arch/x86/kernel/pci-iommu_table.c:63:37: warning: Using plain integer as NULL pointer Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: <hpa@zytor.com> Cc: <gregkh@linuxfoundation.org> Link: https://lkml.kernel.org/r/1532162004-24670-1-git-send-email-zhongjiang@huawei.com
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