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[PATCH 3/7] pickaxe: plug regex/kws leak

From
René Scharfe <rene.scharfe@lsrfire.ath.cx>
Date
Oct 6, 2011, 16:23 UTC
Message-ID
<4E8DD5EF.9000700@lsrfire.ath.cx>
In-Reply-To
<4E8DD065.3040607@lsrfire.ath.cx>

With -S... --pickaxe-all, free the regex or the kws before returning even if we found a match. Also get rid of the variable has_changes, as we can simply break out of the loop.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
---
 diffcore-pickaxe.c |   13 +++++++------
 1 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/diffcore-pickaxe.c b/diffcore-pickaxe.c
index 96f7ea6..c367d8d 100644
--- a/diffcore-pickaxe.c
+++ b/diffcore-pickaxe.c
@@ -221,7 +221,7 @@ static void diffcore_pickaxe_count(struct diff_options *o)
 
 	if (opts & DIFF_PICKAXE_ALL) {
 		/* Showing the whole changeset if needle exists */
-		for (i = has_changes = 0; !has_changes && i < q->nr; i++) {
+		for (i = 0; i < q->nr; i++) {
 			struct diff_filepair *p = q->queue[i];
 			if (!DIFF_FILE_VALID(p->one)) {
 				if (!DIFF_FILE_VALID(p->two))
@@ -238,9 +238,9 @@ static void diffcore_pickaxe_count(struct diff_options *o)
 				 contains(p->one, needle, len, regexp, kws) !=
 				 contains(p->two, needle, len, regexp, kws))
 				has_changes++;
+			if (has_changes)
+				goto out; /* do not munge the queue */
 		}
-		if (has_changes)
-			return; /* not munge the queue */
 
 		/* otherwise we will clear the whole queue
 		 * by copying the empty outq at the end of this
@@ -278,13 +278,14 @@ static void diffcore_pickaxe_count(struct diff_options *o)
 				diff_free_filepair(p);
 		}
 
+	free(q->queue);
+	*q = outq;
+
+ out:
 	if (opts & DIFF_PICKAXE_REGEX)
 		regfree(&regex);
 	else
 		kwsfree(kws);
-
-	free(q->queue);
-	*q = outq;
 	return;
 }
 
-- 
1.7.7
Previous: René ScharfeNext: René Scharfe
Message 4 of 9 in “pickaxe: plug memory leaks, deduplicate code”
  1. 0/7 pickaxe: plug memory leaks, deduplicate codeRené Scharfe, Oct 6, 2011
  2. 1/7 pickaxe: plug diff filespec leak with empty needleRené Scharfe, Oct 6, 2011
  3. 2/7 pickaxe: plug regex leakRené Scharfe, Oct 6, 2011
  4. 3/7 pickaxe: plug regex/kws leakRené Scharfe, Oct 6, 2011
  5. 4/7 pickaxe: factor out has_changesRené Scharfe, Oct 6, 2011
  6. 5/7 pickaxe: pass diff_options to contains and has_changesRené Scharfe, Oct 6, 2011
  7. 6/7 pickaxe: give diff_grep the same signature as has_changesRené Scharfe, Oct 6, 2011
  8. 7/7 pickaxe: factor out pickaxeRené Scharfe, Oct 6, 2011
  9. Junio C HamanoOct 7, 2011

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