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acpi/apei/erst: Add missing iounmap() on error in erst_exec_move_data()
author
Wei Yongjun
<yongjun_wei@trendmicro.com.cn>
Tue, 2 Jul 2013 01:02:32 +0000
(09:02 +0800)
committer
Tony Luck
<tony.luck@intel.com>
Mon, 19 Aug 2013 17:13:30 +0000
(10:13 -0700)
Add the missing iounmap() before return from erst_exec_move_data()
in the error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
drivers/acpi/apei/erst.c
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diff --git
a/drivers/acpi/apei/erst.c
b/drivers/acpi/apei/erst.c
index 88d0b0f9f92b73706e330e62a4bcf70dd4b0befa..6885809abcd8e283ed32425c7a508df3ac9c9d6f 100644
(file)
--- a/
drivers/acpi/apei/erst.c
+++ b/
drivers/acpi/apei/erst.c
@@
-284,8
+284,10
@@
static int erst_exec_move_data(struct apei_exec_context *ctx,
if (!src)
return -ENOMEM;
dst = ioremap(ctx->dst_base + offset, ctx->var2);
- if (!dst)
+ if (!dst) {
+ iounmap(src);
return -ENOMEM;
+ }
memmove(dst, src, ctx->var2);