linux-kernel - [PATCH] mtd: bcm47xxnflash: Add error handling for bcm47xxnflash_ops_bcm4706_ctl

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Message-ID: <20250403134731.2054-1-vulab@iscas.ac.cn>
Date: Thu,  3 Apr 2025 21:47:31 +0800
From: Wentao Liang <vulab@...as.ac.cn>
To: miquel.raynal@...tlin.com,
	richard@....at,
	vigneshr@...com
Cc: linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Wentao Liang <vulab@...as.ac.cn>
Subject: [PATCH] mtd: bcm47xxnflash: Add error handling for bcm47xxnflash_ops_bcm4706_ctl_cmd().

The bcm47xxnflash_ops_bcm4706_cmd_ctrl() calls
bcm47xxnflash_ops_bcm4706_ctl_cmd() without printing error message. A
proper implementation can be found in bcm47xxnflash_ops_bcm4706_write().

Add error log to the bcm47xxnflash_ops_bcm4706_ctl_cmd() to prevent
selent failure.

Signed-off-by: Wentao Liang <vulab@...as.ac.cn>
---
 drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c
index 6487dfc64258..c89129588bb6 100644
--- a/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c
+++ b/drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c
@@ -182,7 +182,8 @@ static void bcm47xxnflash_ops_bcm4706_cmd_ctrl(struct nand_chip *nand_chip,
 	if (cmd != NAND_CMD_RESET)
 		code |= NCTL_CSA;
 
-	bcm47xxnflash_ops_bcm4706_ctl_cmd(b47n->cc, code);
+	if (bcm47xxnflash_ops_bcm4706_ctl_cmd(b47n->cc, code))
+		pr_err("%s ctl_cmd didn't work!\n", __func__);
 }
 
 /* Default nand_select_chip calls cmd_ctrl, which is not used in BCM4706 */
-- 
2.42.0.windows.2