linux-kernel - [PATCH] perf bench: Fix null check

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Message-ID: <tencent_B5D64530EB9C7DBB8D2C88A0C790F1489D0A@qq.com>
Date:   Fri, 11 Mar 2022 21:07:16 +0800
From:   Weiguo Li <liwg06@...mail.com>
To:     dave@...olabs.net, dbueso@...e.de, peterz@...radead.org,
        mingo@...hat.com, acme@...nel.org
Cc:     mark.rutland@....com, alexander.shishkin@...ux.intel.com,
        jolsa@...nel.org, namhyung@...nel.org,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] perf bench: Fix null check

We did a null check after "epollfdp = calloc(...)", but we checked
"epollfd" instead of "epollfdp".

Signed-off-by: Weiguo Li <liwg06@...mail.com>
---
 tools/perf/bench/epoll-ctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/bench/epoll-ctl.c b/tools/perf/bench/epoll-ctl.c
index 740ae764537e..134612bde0cb 100644
--- a/tools/perf/bench/epoll-ctl.c
+++ b/tools/perf/bench/epoll-ctl.c
@@ -106,7 +106,7 @@ static void nest_epollfd(void)
 	printinfo("Nesting level(s): %d\n", nested);
 
 	epollfdp = calloc(nested, sizeof(int));
-	if (!epollfd)
+	if (!epollfdp)
 		err(EXIT_FAILURE, "calloc");
 
 	for (i = 0; i < nested; i++) {
-- 
2.25.1