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Subject[PATCH 3.12 130/142] ACPI / resources: free memory on error in add_region_before()
Date
From: Dan Carpenter <dan.carpenter@oracle.com>

3.12-stable review patch. If anyone has any objections, please let me know.

===============

commit 7bc10388ccdd79b3d20463151a1f8e7a590a775b upstream.

There is a small memory leak on error.

Fixes: 0f1b414d1907 (ACPI / PNP: Avoid conflicting resource reservations)
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/acpi/resource.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 28314ba82320..3760e9635aea 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -577,8 +577,10 @@ static int add_region_before(u64 start, u64 end, u8 space_id,
return -ENOMEM;

error = request_range(start, end, space_id, flags, desc);
- if (error)
+ if (error) {
+ kfree(reg);
return error;
+ }

reg->start = start;
reg->end = end;
--
2.12.2
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