linux-kernel - [PATCH AUTOSEL 4.9 20/48] mmc: tmio: do not print real IOMEM pointer

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Date:   Tue, 22 Dec 2020 21:23:48 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzk@...nel.org>,
        kernel test robot <lkp@...el.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Sasha Levin <sashal@...nel.org>, linux-mmc@...r.kernel.org
Subject: [PATCH AUTOSEL 4.9 20/48] mmc: tmio: do not print real IOMEM pointer

From: Krzysztof Kozlowski <krzk@...nel.org>

[ Upstream commit ade8e9d3fb9232ddfb87a4bc641b35b988d9757b ]

Printing kernel pointers is discouraged because they might leak kernel
memory layout.  This fixes smatch warning:

    drivers/mmc/host/tmio_mmc.c:177 tmio_mmc_probe() warn: argument 3 to %08lx specifier is cast from pointer

Reported-by: kernel test robot <lkp@...el.com>
Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
Link: https://lore.kernel.org/r/20201116164252.44078-1-krzk@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/mmc/host/tmio_mmc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index e897e7fc3b14c..052093db7d159 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -109,8 +109,7 @@ static int tmio_mmc_probe(struct platform_device *pdev)
 	if (ret)
 		goto host_remove;
 
-	pr_info("%s at 0x%08lx irq %d\n", mmc_hostname(host->mmc),
-		(unsigned long)host->ctl, irq);
+	pr_info("%s at 0x%p irq %d\n", mmc_hostname(host->mmc), host->ctl, irq);
 
 	return 0;
 
-- 
2.27.0