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Mon, 10 Apr 2023 02:17:04 -0700 (PDT) Received: from GL4FX4PXWL.bytedance.net ([139.177.225.248]) by smtp.gmail.com with ESMTPSA id d18-20020aa78152000000b005d61829db4fsm7314970pfn.168.2023.04.10.02.17.01 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 10 Apr 2023 02:17:04 -0700 (PDT) From: Peng Zhang To: Liam.Howlett@oracle.com Cc: akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, maple-tree@lists.infradead.org, Peng Zhang , David Binderman Subject: [PATCH] maple_tree: Use correct variable type in sizeof Date: Mon, 10 Apr 2023 17:14:31 +0800 Message-Id: <20230410091431.74961-1-zhangpeng.00@bytedance.com> X-Mailer: git-send-email 2.37.0 (Apple Git-136) MIME-Version: 1.0 X-Rspam-User: X-Rspamd-Server: rspam03 X-Stat-Signature: 7xro1was94fwwyt97enkwdjwhtcdansu X-Rspamd-Queue-Id: 07D041C000F X-HE-Tag: 1681118225-236869 X-HE-Meta: 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 EX53tWL8 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: The original code is: memset(pivs + tmp, 0, sizeof(unsigned long *) * (max_p - tmp)); The type of variable pointed to by pivs is unsigned long, but the type used in sizeof is a pointer type. Change it to unsigned long. Suggested-by: David Binderman Signed-off-by: Peng Zhang Reviewed-by: Liam R. Howlett --- lib/maple_tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/maple_tree.c b/lib/maple_tree.c index 88c44f6d6cee..b06fc5f19b31 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -3255,7 +3255,7 @@ static inline void mas_destroy_rebalance(struct ma_state *mas, unsigned char end if (tmp < max_p) memset(pivs + tmp, 0, - sizeof(unsigned long *) * (max_p - tmp)); + sizeof(unsigned long) * (max_p - tmp)); if (tmp < mt_slots[mt]) memset(slots + tmp, 0, sizeof(void *) * (max_s - tmp));