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[PATCH 1/2] builtin/checkout.c: don't leak memory in check_tracking_name

From
BCBrandon Casey <bcasey@nvidia.com>
Date
Jun 18, 2013, 01:40 UTC
Message-ID
<1371519650-17869-1-git-send-email-bcasey@nvidia.com>
From: Brandon Casey <drafnel@gmail.com>

remote_find_tracking() populates the query struct with an allocated string in the dst member. So, we do not need to xstrdup() the string, since we can transfer ownership from the query struct (which will go out of scope at the end of this function) to our callback struct, but we must free the string if it will not be used so we will not leak memory.

Let's do so.
Signed-off-by: Brandon Casey <drafnel@gmail.com>
---
 builtin/checkout.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/builtin/checkout.c b/builtin/checkout.c
index f5b50e5..3be0018 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -838,13 +838,16 @@ static int check_tracking_name(struct remote *remote, void *cb_data)
 	memset(&query, 0, sizeof(struct refspec));
 	query.src = cb->src_ref;
 	if (remote_find_tracking(remote, &query) ||
-	    get_sha1(query.dst, cb->dst_sha1))
+	    get_sha1(query.dst, cb->dst_sha1)) {
+		free(query.dst);
 		return 0;
+	}
 	if (cb->dst_ref) {
+		free(query.dst);
 		cb->unique = 0;
 		return 0;
 	}
-	cb->dst_ref = xstrdup(query.dst);
+	cb->dst_ref = query.dst;
 	return 0;
 }
 
-- 
1.8.2.415.g63cec41
Next: Brandon Casey
Message 1 of 5 in “builtin/checkout.c: don't leak memory in check_tracking_name”
  1. 1/2 builtin/checkout.c: don't leak memory in check_tracking_nameBrandon Casey, Jun 18, 2013
  2. 2/2 t/t9802: explicitly name the upstream branch to use as a baseBrandon Casey, Jun 18, 2013
  3. Pete WyckoffJun 18, 2013
  4. Junio C HamanoJun 18, 2013
  5. Jeff KingJun 18, 2013

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