From 8d897d2540ff7f97941f1f3cb065ce4a9d808774 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin Date: Wed, 24 Aug 2016 11:11:55 -0400 Subject: [PATCH] staging/lustre/llite: Fix suspicious dereference of pointer 'vma->vm_file' Remove useless LASSERT(vma->vm_file) because of if it's NULL it will crash early in file_inode(vma->vm_file). Signed-off-by: Dmitry Eremin Reviewed-on: http://review.whamcloud.com/21171 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8372 Reviewed-by: John L. Hammond Reviewed-by: Bob Glossman Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lustre/llite/llite_mmap.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/llite_mmap.c b/drivers/staging/lustre/lustre/llite/llite_mmap.c index 9d03e79..37f82ed 100644 --- a/drivers/staging/lustre/lustre/llite/llite_mmap.c +++ b/drivers/staging/lustre/lustre/llite/llite_mmap.c @@ -429,7 +429,6 @@ static void ll_vm_open(struct vm_area_struct *vma) struct inode *inode = file_inode(vma->vm_file); struct vvp_object *vob = cl_inode2vvp(inode); - LASSERT(vma->vm_file); LASSERT(atomic_read(&vob->vob_mmap_cnt) >= 0); atomic_inc(&vob->vob_mmap_cnt); } @@ -442,7 +441,6 @@ static void ll_vm_close(struct vm_area_struct *vma) struct inode *inode = file_inode(vma->vm_file); struct vvp_object *vob = cl_inode2vvp(inode); - LASSERT(vma->vm_file); atomic_dec(&vob->vob_mmap_cnt); LASSERT(atomic_read(&vob->vob_mmap_cnt) >= 0); } -- 2.7.4