linux-kernel - [PATCH] [v2] dmaengine: ste_dma40: use proper format string for resource_size

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Message-Id: <20230519093447.4097040-1-arnd@kernel.org>
Date:   Fri, 19 May 2023 11:34:38 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Vinod Koul <vkoul@...nel.org>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Julia Lawall <Julia.Lawall@...ia.fr>,
        linux-arm-kernel@...ts.infradead.org, dmaengine@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] [v2] dmaengine: ste_dma40: use proper format string for resource_size_t

From: Arnd Bergmann <arnd@...db.de>

A fixup for a printk format string warning causes an out-of-bounds
variable access as the %pR string expects a struct resource instead of
a plain resource_size_t.

Change both to the special %pap and %pap helpers for these types.

Fixes: 5a1a3b9c19dd ("dmaengine: ste_dma40: Get LCPA SRAM from SRAM node")
Fixes: ef1e1c41a11d ("dmaengine: ste_dma40: use correct print specfier for resource_size_t")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
v2: fix up incorrect fix misusing %pR
---
 drivers/dma/ste_dma40.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 8e9c02f83fc7..803c65cd6712 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -3536,8 +3536,8 @@ static int __init d40_probe(struct platform_device *pdev)
 	}
 	base->lcpa_size = resource_size(&res_lcpa);
 	base->phy_lcpa = res_lcpa.start;
-	dev_info(dev, "found LCPA SRAM at 0x%08x, size %pR\n",
-		 (u32)base->phy_lcpa, &base->lcpa_size);
+	dev_info(dev, "found LCPA SRAM at %pad, size %pa\n",
+		 &base->phy_lcpa, &base->lcpa_size);
 
 	/* We make use of ESRAM memory for this. */
 	val = readl(base->virtbase + D40_DREG_LCPA);
-- 
2.39.2