linux-kernel - [PATCH linux-next] tools/tracing: fix application of sizeof to pointer

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Date:   Thu, 19 Aug 2021 23:00:43 -0700
From:   CGEL <cgel.zte@...il.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Viktor Rosendahl <Viktor.Rosendahl@....de>,
        Colin Ian King <colin.king@...onical.com>,
        Xu Wang <vulab@...as.ac.cn>, linux-kernel@...r.kernel.org,
        jing yangyang <jing.yangyang@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH linux-next] tools/tracing: fix application of sizeof to pointer

From: jing yangyang <jing.yangyang@....com.cn>

sizeof when applied to a pointer typed expression gives the size of
the pointer.

./tools/tracing/latency/latency-collector.c:1541:10-16:ERROR application of sizeof to pointer

This issue was detected with the help of Coccinelle.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: jing yangyang <jing.yangyang@....com.cn>
---
 tools/tracing/latency/latency-collector.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/tracing/latency/latency-collector.c b/tools/tracing/latency/latency-collector.c
index 3a2e6bb..64d531d 100644
--- a/tools/tracing/latency/latency-collector.c
+++ b/tools/tracing/latency/latency-collector.c
@@ -1538,7 +1538,7 @@ static void tracing_loop(void)
 				mutex_lock(&print_mtx);
 				check_signals();
 				write_or_die(fd_stdout, queue_full_warning,
-					     sizeof(queue_full_warning));
+					     sizeof(*queue_full_warning));
 				mutex_unlock(&print_mtx);
 			}
 			modified--;
-- 
1.8.3.1