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Subject[PATCH 4.1 206/267] ACPI / resources: free memory on error in add_region_before()
Date
4.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@oracle.com>

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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/acpi/resource.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -660,8 +660,10 @@ static int add_region_before(u64 start,
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;



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