UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

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 <dmitry.eremin@intel.com>
Reviewed-on: http://review.whamcloud.com/21171
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8372
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dmitry Eremin 2016-08-24 11:11:55 -04:00 committed by Greg Kroah-Hartman
parent 76cc3abe44
commit 8d897d2540
1 changed files with 0 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/staging/lustre/lustre/llite/llite_mmap.c
View File

@ -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);
}