linux-kernel - [PATCH 2/3] spi: sprd: Make sure offset not equal to slave address size

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Message-Id: <20210824070212.2089255-2-zhang.lyra@gmail.com>
Date:   Tue, 24 Aug 2021 15:02:11 +0800
From:   Chunyan Zhang <zhang.lyra@...il.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     linux-spi@...r.kernel.org, Baolin Wang <baolin.wang7@...il.com>,
        Orson Zhai <orsonzhai@...il.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        Chunyan Zhang <chunyan.zhang@...soc.com>,
        Luting Guo <luting.guo@...soc.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/3] spi: sprd: Make sure offset not equal to slave address size

From: Chunyan Zhang <chunyan.zhang@...soc.com>

The slave register offset shouldn't equal to the max slave address
which ADI can support to access.

Signed-off-by: Chunyan Zhang <chunyan.zhang@...soc.com>
---
 drivers/spi/spi-sprd-adi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-sprd-adi.c b/drivers/spi/spi-sprd-adi.c
index abdad1ea7b38..06af519c0b21 100644
--- a/drivers/spi/spi-sprd-adi.c
+++ b/drivers/spi/spi-sprd-adi.c
@@ -119,7 +119,7 @@ struct sprd_adi {
 
 static int sprd_adi_check_addr(struct sprd_adi *sadi, u32 reg)
 {
-	if (reg > ADI_SLAVE_ADDR_SIZE) {
+	if (reg >= ADI_SLAVE_ADDR_SIZE) {
 		dev_err(sadi->dev,
 			"slave address offset is incorrect, reg = 0x%x\n",
 			reg);
-- 
2.25.1