From: Alexey Kardashevskiy Date: Wed, 20 Oct 2021 13:23:13 +0000 (+1100) Subject: powerpc/pseries/iommu: Use correct vfree for it_map X-Git-Tag: v5.15~6^2~2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=41ee7232fa5f3c034f22baa52bc287e494e2129a;p=platform%2Fkernel%2Flinux-starfive.git powerpc/pseries/iommu: Use correct vfree for it_map The it_map array is vzalloc'ed so use vfree() for it when creating a huge DMA window failed for whatever reason. While at this, write zero to it_map. Fixes: 381ceda88c4c ("powerpc/pseries/iommu: Make use of DDW for indirect mapping") Signed-off-by: Alexey Kardashevskiy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20211020132315.2287178-3-aik@ozlabs.ru --- diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index dab5c56..c003f69 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -1440,7 +1440,8 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn) /* Keep default DMA window stuct if removed */ if (default_win_removed) { tbl->it_size = 0; - kfree(tbl->it_map); + vfree(tbl->it_map); + tbl->it_map = NULL; } set_iommu_table_base(&dev->dev, newtbl);