iommu/mediatek: Check return value after calling platform_get_resource()

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platform_get_resource() may return NULL pointer, we need check its
return value to avoid null-ptr-deref in resource_size().

Fixes: 42d57fc58a ("iommu/mediatek: Initialise/Remove for multi bank dev")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20221029103550.3774365-1-yangyingliang@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Yang Yingliang 2022-10-29 18:35:50 +08:00 • committed by Joerg Roedel

parent 30a0b95b13

commit 73b6924cde

1 changed files with 2 additions and 0 deletions

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drivers/iommu/mtk_iommu.c

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