# [PATCH] git-fsck-cache: Gracefully handle non-commit IDs

1 messages from 2005-04-30 to 2005-04-30. Participants: Jonas Fonseca.
Thread: https://gitlist.dev/t/402

## Jonas Fonseca, 2005-04-30 00:28

Subject: [PATCH] git-fsck-cache: Gracefully handle non-commit IDs
Message-ID: <20050430002809.GB32339@diku.dk>
URL: https://gitlist.dev/e/20050430002809.GB32339%40diku.dk

```
Gracefully handle non-commit IDs instead of segfaulting.

Signed-off-by: Jonas Fonseca <fonseca@diku.dk>

--- 09465be469eef9711e93b583f4cd1092baa58f90/fsck-cache.c  (mode:100644 sha1:280a104050b665515418c00c33af8e6b0b0e2101)
+++ uncommitted/fsck-cache.c  (mode:100644)
@@ -174,7 +216,14 @@
 			continue;
 
 		if (!get_sha1_hex(arg, head_sha1)) {
-			struct object *obj = &lookup_commit(head_sha1)->object;
+			struct commit *commit = lookup_commit(head_sha1);
+			struct object *obj;
+
+			/* Error is printed by lookup_commit(). */
+			if (!commit)
+				continue;
+
+			obj = &commit->object;
 			obj->used = 1;
 			mark_reachable(obj, REACHABLE);
 			heads++;
-- 
Jonas Fonseca

```