acpi/apei/erst: Add missing iounmap() on error in erst_exec_move_data()
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>
diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index 88d0b0f..6885809 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -284,8 +284,10 @@
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);