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[PATCH v4 17/34] merge-recursive: fix leaks of allocated renames and diff_filepairs

From
Elijah Newren <newren@gmail.com>
Date
Nov 29, 2017, 01:42 UTC
Message-ID
<20171129014237.32570-18-newren@gmail.com>
In-Reply-To
<20171129014237.32570-1-newren@gmail.com>

get_renames() has always zero'ed out diff_queued_diff.nr while only manually free'ing diff_filepairs that did not correspond to renames. Further, it allocated struct renames that were tucked away in the return string_list. Make sure all of these are deallocated when we are done with them.

Signed-off-by: Elijah Newren <newren@gmail.com>
---
 merge-recursive.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)
diff --git a/merge-recursive.c b/merge-recursive.c
index e95eac2c70..cdd0afa047 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -1653,13 +1653,23 @@ static int handle_renames(struct merge_options *o,
 	return process_renames(o, ri->head_renames, ri->merge_renames);
 }
 
-static void cleanup_renames(struct rename_info *re_info)
+static void cleanup_rename(struct string_list *rename)
 {
-	string_list_clear(re_info->head_renames, 0);
-	string_list_clear(re_info->merge_renames, 0);
+	const struct rename *re;
+	int i;
 
-	free(re_info->head_renames);
-	free(re_info->merge_renames);
+	for (i = 0; i < rename->nr; i++) {
+		re = rename->items[i].util;
+		diff_free_filepair(re->pair);
+	}
+	string_list_clear(rename, 1);
+	free(rename);
+}
+
+static void cleanup_renames(struct rename_info *re_info)
+{
+	cleanup_rename(re_info->head_renames);
+	cleanup_rename(re_info->merge_renames);
 }
 
 static struct object_id *stage_oid(const struct object_id *oid, unsigned mode)
-- 
2.15.0.408.g850bc54b15
Previous: Elijah NewrenNext: Elijah Newren
Message 11 of 40 in “Add directory rename detection to git”
  1. 00/34 Add directory rename detection to gitElijah Newren, Nov 29, 2017
  2. 15/34 merge-recursive: move the get_renames() functionElijah Newren, Nov 29, 2017
  3. 24/34 merge-recursive: add a new hashmap for storing file collisionsElijah Newren, Nov 29, 2017
  4. 13/34 directory rename detection: tests for handling overwriting untracked filesElijah Newren, Nov 29, 2017
  5. 05/34 directory rename detection: directory splitting testcasesElijah Newren, Nov 29, 2017
  6. 12/34 directory rename detection: miscellaneous testcases to complete coverageElijah Newren, Nov 29, 2017
  7. 19/34 merge-recursive: split out code for determining diff_filepairsElijah Newren, Nov 29, 2017
  8. 22/34 merge-recursive: add get_directory_renames()Elijah Newren, Nov 29, 2017
  9. 02/34 merge-recursive: fix logic ordering issueElijah Newren, Nov 29, 2017
  10. 18/34 merge-recursive: make !o->detect_rename codepath more obviousElijah Newren, Nov 29, 2017
  11. 17/34 merge-recursive: fix leaks of allocated renames and diff_filepairsElijah Newren, Nov 29, 2017
  12. 31/34 merge-recursive: fix remaining directory rename + dirty overwrite casesElijah Newren, Nov 29, 2017
  13. 04/34 directory rename detection: basic testcasesElijah Newren, Nov 29, 2017
  14. 26/34 merge-recursive: check for file level conflicts then get new nameElijah Newren, Nov 29, 2017
  15. 16/34 merge-recursive: introduce new functions to handle rename logicElijah Newren, Nov 29, 2017
  16. 28/34 merge-recursive: apply necessary modifications for directory renamesElijah Newren, Nov 29, 2017
  17. 23/34 merge-recursive: check for directory level conflictsElijah Newren, Nov 29, 2017
  18. 06/34 directory rename detection: testcases to avoid taking detection too farElijah Newren, Nov 29, 2017
  19. 11/34 directory rename detection: testcases exploring possibly suboptimal mergesElijah Newren, Nov 29, 2017
  20. 03/34 merge-recursive: add explanation for src_entry and dst_entryElijah Newren, Nov 29, 2017
  21. 14/34 directory rename detection: tests for handling overwriting dirty filesElijah Newren, Nov 29, 2017
  22. 25/34 merge-recursive: add computation of collisions due to dir rename & mergingElijah Newren, Nov 29, 2017
  23. 33/34 merge-recursive: avoid spurious rename/rename conflict from dir renamesElijah Newren, Nov 29, 2017
  24. 27/34 merge-recursive: when comparing files, don't include treesElijah Newren, Nov 29, 2017
  25. 32/34 directory rename detection: new testcases showcasing a pair of bugsElijah Newren, Nov 29, 2017
  26. 21/34 merge-recursive: make a helper function for cleanup for handle_renamesElijah Newren, Nov 29, 2017
  27. 10/34 directory rename detection: more involved edge/corner testcasesElijah Newren, Nov 29, 2017
  28. 20/34 merge-recursive: add a new hashmap for storing directory renamesElijah Newren, Nov 29, 2017
  29. 09/34 directory rename detection: testcases checking which side did the renameElijah Newren, Nov 29, 2017
  30. 30/34 merge-recursive: fix overwriting dirty files involved in renamesElijah Newren, Nov 29, 2017
  31. 29/34 merge-recursive: avoid clobbering untracked files with directory renamesElijah Newren, Nov 29, 2017
  32. 08/34 directory rename detection: files/directories in the way of some renamesElijah Newren, Nov 29, 2017
  33. 34/34 merge-recursive: ensure we write updates for directory-renamed fileElijah Newren, Nov 29, 2017
  34. 07/34 directory rename detection: partially renamed directory testcase/discussionElijah Newren, Nov 29, 2017
  35. 01/34 Tighten and correct a few testcases for merging and cherry-pickingElijah Newren, Nov 29, 2017
  36. Junio C HamanoDec 13, 2017
  37. Junio C HamanoDec 13, 2017
  38. Elijah NewrenDec 13, 2017
  39. Ramsay JonesDec 13, 2017
  40. Junio C HamanoDec 13, 2017

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