shallow: avoid memory leak

Reported by Coverity. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Johannes Schindelin committed May 4, 2017 at 15:58 UTC 7c565a6b2d8bf7fe989c85dc75df7fabc8113f40
1 file changed +6 -2
shallow.c
+6 -2
@@ -473,11 +473,15 @@ static void paint_down(struct paint_info *info, const unsigned char *sha1,
473 struct commit_list *head = NULL;
474 int bitmap_nr = (info->nr_bits + 31) / 32;
475 size_t bitmap_size = st_mult(sizeof(uint32_t), bitmap_nr);
476 - uint32_t *tmp = xmalloc(bitmap_size); /* to be freed before return */
477 - uint32_t *bitmap = paint_alloc(info);
476 struct commit *c = lookup_commit_reference_gently(sha1, 1);
477 + uint32_t *tmp; /* to be freed before return */
478 + uint32_t *bitmap;
479 +
480 if (!c)
481 return;
482 +
483 + tmp = xmalloc(bitmap_size);
484 + bitmap = paint_alloc(info);
485 memset(bitmap, 0, bitmap_size);
486 bitmap[id / 32] |= (1U << (id % 32));
487 commit_list_insert(c, &head);