The patch titled
Subject: drivers/dax/kmem.c: fix mismatches of request_mem_region()
has been added to the -mm tree. Its filename is
device-dax-fix-mismatches-of-request_mem_region.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/device-dax-fix-mismatches-of-request_mem_region.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/device-dax-fix-mismatches-of-request_mem_region.patch
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------------------------------------------------------
From: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
Subject: drivers/dax/kmem.c: fix mismatches of request_mem_region()
For neatness's sake, The resources allocated by request_mem_region()
should be freed with release_mem_region(). These two functions are
paired.
Link: http://lkml.kernel.org/r/20200817065926.2239-1-thunder.leizhen@xxxxxxxxxx
Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Vishal Verma <vishal.l.verma@xxxxxxxxx>
Cc: Dave Jiang <dave.jiang@xxxxxxxxx>
Cc: Ira Weiny <ira.weiny@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/dax/kmem.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
--- a/drivers/dax/kmem.c~device-dax-fix-mismatches-of-request_mem_region
+++ a/drivers/dax/kmem.c
@@ -82,8 +82,7 @@ int dev_dax_kmem_probe(struct device *de
rc = add_memory_driver_managed(numa_node, new_res->start,
resource_size(new_res), kmem_name);
if (rc) {
- release_resource(new_res);
- kfree(new_res);
+ release_mem_region(kmem_start, kmem_size);
kfree(new_res_name);
return rc;
}
@@ -118,8 +117,7 @@ static int dev_dax_kmem_remove(struct de
}
/* Release and free dax resources */
- release_resource(res);
- kfree(res);
+ release_mem_region(kmem_start, kmem_size);
kfree(res_name);
dev_dax->dax_kmem_res = NULL;
_
Patches currently in -mm which might be from thunder.leizhen@xxxxxxxxxx are
device-dax-fix-mismatches-of-request_mem_region.patch
