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* [PATCH] [objtoo] fix memory leak in special_get_alts
@ 2020-06-22  2:04 Gaurav Singh
  2020-06-22 22:48 ` Josh Poimboeuf
  0 siblings, 1 reply; 2+ messages in thread
From: Gaurav Singh @ 2020-06-22  2:04 UTC (permalink / raw)
  To: gaurav1086, Josh Poimboeuf, Peter Zijlstra, open list

Free alt before returning to avoid memory leak.

Signed-off-by: Gaurav Singh <gaurav1086@gmail.com>
---
 tools/objtool/special.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/objtool/special.c b/tools/objtool/special.c
index e74e0189de22..f6f7dee1ba77 100644
--- a/tools/objtool/special.c
+++ b/tools/objtool/special.c
@@ -188,8 +188,10 @@ int special_get_alts(struct elf *elf, struct list_head *alts)
 			memset(alt, 0, sizeof(*alt));
 
 			ret = get_alt_entry(elf, entry, sec, idx, alt);
-			if (ret)
+			if (ret) {
+				free(alt);
 				return ret;
+			}
 
 			list_add_tail(&alt->list, alts);
 		}
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] [objtoo] fix memory leak in special_get_alts
  2020-06-22  2:04 [PATCH] [objtoo] fix memory leak in special_get_alts Gaurav Singh
@ 2020-06-22 22:48 ` Josh Poimboeuf
  0 siblings, 0 replies; 2+ messages in thread
From: Josh Poimboeuf @ 2020-06-22 22:48 UTC (permalink / raw)
  To: Gaurav Singh; +Cc: Peter Zijlstra, open list

On Sun, Jun 21, 2020 at 10:04:34PM -0400, Gaurav Singh wrote:
> Free alt before returning to avoid memory leak.
> 
> Signed-off-by: Gaurav Singh <gaurav1086@gmail.com>

Hi Gaurav,

Since objtool is a short-lived (and performance sensitive) process, we
don't care about memory leaks.  In fact we intentionally don't fix them.

-- 
Josh


^ permalink raw reply	[flat|nested] 2+ messages in thread

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