From: Kees Cook Date: Fri, 6 Feb 2026 22:21:52 +0000 (-0800) Subject: drm/msm: Adjust msm_iommu_pagetable_prealloc_allocate() allocation type X-Git-Tag: ceph-for-7.0-rc4~140^2~1 X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=48634a9ea06a453a3f0635a7063dcc63f6729436;p=ceph-client.git drm/msm: Adjust msm_iommu_pagetable_prealloc_allocate() allocation type In preparation for making the kmalloc family of allocators type aware, we need to make sure that the returned type from the allocation matches the type of the variable being assigned. (Before, the allocator would always return "void *", which can be implicitly cast to any pointer type.) The assigned type is "void **" but the returned type will be "void ***". These are the same allocation size (pointer size), but the types do not match. Adjust the allocation type to match the assignment. Reviewed-by: Dmitry Baryshkov Link: https://patch.msgid.link/20260206222151.work.016-kees@kernel.org Signed-off-by: Kees Cook --- diff --git a/drivers/gpu/drm/msm/msm_iommu.c b/drivers/gpu/drm/msm/msm_iommu.c index d5dede4ff761..271baf4dc4e8 100644 --- a/drivers/gpu/drm/msm/msm_iommu.c +++ b/drivers/gpu/drm/msm/msm_iommu.c @@ -332,7 +332,7 @@ msm_iommu_pagetable_prealloc_allocate(struct msm_mmu *mmu, struct msm_mmu_preall struct kmem_cache *pt_cache = get_pt_cache(mmu); int ret; - p->pages = kvmalloc_array(p->count, sizeof(p->pages), GFP_KERNEL); + p->pages = kvmalloc_array(p->count, sizeof(*p->pages), GFP_KERNEL); if (!p->pages) return -ENOMEM;