[PATCH] devm_memremap_release: fix memremap'd addr handling

From	Toshi Kani <toshi.kani@hpe.com>
Newsgroups	linux.kernel
Subject	[PATCH] devm_memremap_release: fix memremap'd addr handling
Date	2016-02-16 16:40 +0100
Message-ID	<r2PTl-1fi-33@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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The pmem driver calls devm_memremap() to map a persistent memory
range.  When the pmem driver is unloaded, this memremap'd range
is not released.

Fix devm_memremap_release() to handle a given memremap'd address
properly.

Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 kernel/memremap.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/memremap.c b/kernel/memremap.c
index 2c468de..7a1b5c3 100644
--- a/kernel/memremap.c
+++ b/kernel/memremap.c
@@ -114,7 +114,7 @@ EXPORT_SYMBOL(memunmap);
 
 static void devm_memremap_release(struct device *dev, void *res)
 {
-	memunmap(res);
+	memunmap(*(void **)res);
 }
 
 static int devm_memremap_match(struct device *dev, void *res, void *match_data)

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[PATCH] devm_memremap_release: fix memremap'd addr handling Toshi Kani <toshi.kani@hpe.com> - 2016-02-16 16:40 +0100
  Re: [PATCH] devm_memremap_release: fix memremap'd addr handling Andrew Morton <akpm@linux-foundation.org> - 2016-02-17 01:20 +0100
    Re: [PATCH] devm_memremap_release: fix memremap'd addr handling Toshi Kani <toshi.kani@hpe.com> - 2016-02-17 01:30 +0100
  Re: [PATCH] devm_memremap_release: fix memremap'd addr handling Dan Williams <dan.j.williams@intel.com> - 2016-02-17 01:50 +0100

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