From: Randy Dunlap <rdun...@infradead.org>
Coccinelle scripts report the following errors:
lib/test_hmm.c:523:20-26: ERROR: reference preceded by free on line 521
lib/test_hmm.c:524:21-27: ERROR: reference preceded by free on line 521
lib/test_hmm.c:523:28-35: ERROR: devmem is NULL but dereferenced.
lib/test_hmm.c:524:29-36: ERROR: devmem is NULL but dereferenced.
Fix these by using the local variable 'res' instead of devmem.
Signed-off-by: Randy Dunlap <rdun...@infradead.org>
Cc: Jérôme Glisse <jgli...@redhat.com>
Cc: linux...@kvack.org
Cc: Ralph Campbell <rcampb...@nvidia.com>
---
lib/test_hmm.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- linux-next-20200617.orig/lib/test_hmm.c
+++ linux-next-20200617/lib/test_hmm.c
@@ -520,8 +520,7 @@ static bool dmirror_allocate_chunk(struc
err_free:
kfree(devmem);
err_release:
- release_mem_region(devmem->pagemap.res.start,
- resource_size(&devmem->pagemap.res));
+ release_mem_region(res->start, resource_size(res));
err:
mutex_unlock(&mdevice->devmem_lock);
return false;
