2015-06-29 08:11:45

by Maninder Singh

[permalink] [raw]
Subject: [PATCH v2] ACPI/resource.c: Fix memory leak reg

static analysis gives memory leak error for reg:-
[drivers/acpi/resource.c:663]: (error) Memory leak: reg

free allocated memory for reg in case of error from request_range

Signed-off-by: Maninder Singh <[email protected]>
Reviewed-by: Akhilesh Kumar <[email protected]>
---
v1: allocate memory after request_range error checking
v2: free allocated memory in case of error as Suggested by
Jiang Liu <[email protected]>

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 fcb7807..10561ce 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -660,8 +660,10 @@ 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;
--
1.7.9.5