From d742aa152f27448d39ce65fb829e396d10cd63a9 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Thu, 21 Nov 2013 18:26:42 -0600 Subject: [PATCH] powerpc/booke: Only check for hugetlb in flush if vma != NULL And in flush_hugetlb_page(), don't check whether vma is NULL after we've already dereferenced it. This was found by Dan using static analysis as described here: https://lists.ozlabs.org/pipermail/linuxppc-dev/2013-November/113161.html We currently get away with this because the callers that currently pass NULL for vma seem to be 32-bit-only (e.g. highmem, and CONFIG_DEBUG_PGALLOC in pgtable_32.c) Hugetlb is currently 64-bit only, so we never saw a NULL vma here. Signed-off-by: Scott Wood Reported-by: Dan Carpenter --- Reading git-format-patch failed