linux-kernel - [PATCH v2 2/9] i2c: riic: Use local `dev` pointer in `dev_err

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Message-ID: <20241218001618.488946-3-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Wed, 18 Dec 2024 00:16:11 +0000
From: Prabhakar <prabhakar.csengg@...il.com>
To: Chris Brandt <chris.brandt@...esas.com>,
	Andi Shyti <andi.shyti@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Wolfram Sang <wsa@...nel.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>
Cc: linux-renesas-soc@...r.kernel.org,
	linux-i2c@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Prabhakar <prabhakar.csengg@...il.com>,
	Biju Das <biju.das.jz@...renesas.com>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH v2 2/9] i2c: riic: Use local `dev` pointer in `dev_err_probe()`

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Update the `riic_init_hw()` function to use the local `dev` pointer in
calls to `dev_err_probe()`. Previously, `riic_init_hw()` used
`riic->adapter.dev` in error reporting. Since this function is invoked
during the probe phase, the I2C adapter is not yet initialized, leading to
`(null) ...` being printed in error messages. This patch fixes the issue by
consistently using the local `dev` pointer, which points to
`riic->adapter.dev.parent`.

Additionally, replace `dev_err()` with `dev_err_probe()` throughout
`riic_init_hw()` for consistency.

Fixes: d982d66514192 ("i2c: riic: remove clock and frequency restrictions")
Fixes: 71dacb2565ed (i2c: riic: Simplify unsupported bus speed handling")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
v1->v2
- Collected RB tag from Geert
---
 drivers/i2c/busses/i2c-riic.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/i2c/busses/i2c-riic.c b/drivers/i2c/busses/i2c-riic.c
index bfaa2d728a76..01195ffd4c07 100644
--- a/drivers/i2c/busses/i2c-riic.c
+++ b/drivers/i2c/busses/i2c-riic.c
@@ -320,7 +320,7 @@ static int riic_init_hw(struct riic_dev *riic)
 				      : I2C_MAX_FAST_MODE_FREQ;
 
 	if (t->bus_freq_hz > max_freq)
-		return dev_err_probe(&riic->adapter.dev, -EINVAL,
+		return dev_err_probe(dev, -EINVAL,
 				     "unsupported bus speed %uHz (%u max)\n",
 				     t->bus_freq_hz, max_freq);
 
@@ -356,11 +356,9 @@ static int riic_init_hw(struct riic_dev *riic)
 		rate /= 2;
 	}
 
-	if (brl > (0x1F + 3)) {
-		dev_err(&riic->adapter.dev, "invalid speed (%lu). Too slow.\n",
-			(unsigned long)t->bus_freq_hz);
-		return -EINVAL;
-	}
+	if (brl > (0x1F + 3))
+		return dev_err_probe(dev, -EINVAL, "invalid speed (%lu). Too slow.\n",
+				     (unsigned long)t->bus_freq_hz);
 
 	brh = total_ticks - brl;
 
-- 
2.43.0