linux-kernel - [PATCH 3/6] perf-probe: clean up redundant tests in show_line

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1292854685-8230-4-git-send-email-fbuihuu@gmail.com>
Date:	Mon, 20 Dec 2010 15:18:02 +0100
From:	Franck Bui-Huu <vagabon.xyz@...il.com>
To:	masami.hiramatsu.pt@...achi.com
Cc:	acme@...stprotocols.net, linux-kernel@...r.kernel.org
Subject: [PATCH 3/6] perf-probe: clean up redundant tests in show_line_range()

From: Franck Bui-Huu <fbuihuu@...il.com>

It also removes some superflous parentheses.

Signed-off-by: Franck Bui-Huu <fbuihuu@...il.com>
---
 tools/perf/util/probe-event.c |   26 +++++++++++++++-----------
 1 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 5cc8f6b..3c92b92 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -383,26 +383,30 @@ int show_line_range(struct line_range *lr, const char *module)
 		return -errno;
 	}
 	/* Skip to starting line number */
-	while (l < lr->start && ret >= 0)
+	while (l < lr->start) {
 		ret = show_one_line(fp, l++, true, false);
-	if (ret < 0)
-		goto end;
+		if (ret < 0)
+			goto end;
+	}
 
 	list_for_each_entry(ln, &lr->line_list, list) {
-		while (ln->line > l && ret >= 0)
-			ret = show_one_line(fp, (l++) - lr->offset,
-					    false, false);
-		if (ret >= 0)
-			ret = show_one_line(fp, (l++) - lr->offset,
-					    false, true);
+		for (; ln->line > l; l++) {
+			ret = show_one_line(fp, l - lr->offset, false, false);
+			if (ret < 0)
+				goto end;
+		}
+		ret = show_one_line(fp, l++ - lr->offset, false, true);
 		if (ret < 0)
 			goto end;
 	}
 
 	if (lr->end == INT_MAX)
 		lr->end = l + NR_ADDITIONAL_LINES;
-	while (l <= lr->end && !feof(fp) && ret >= 0)
-		ret = show_one_line(fp, (l++) - lr->offset, false, false);
+	while (l <= lr->end && !feof(fp)) {
+		ret = show_one_line(fp, l++ - lr->offset, false, false);
+		if (ret < 0)
+			break;
+	}
 end:
 	fclose(fp);
 	return ret;
-- 
1.7.3.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/