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From: Hermes Wu via B4 Relay <devnull+Hermes.wu.ite.com.tw@kernel.org>
To: Hermes Wu <Hermes.Wu@ite.com.tw>,
	 Mauro Carvalho Chehab <mchehab@kernel.org>,
	Rob Herring <robh@kernel.org>,
	 Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	 Hans Verkuil <hverkuil+cisco@kernel.org>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>,
	 linux-media@vger.kernel.org, devicetree@vger.kernel.org,
	 linux-kernel@vger.kernel.org, Hermes Wu <Hermes.wu@ite.com.tw>
Subject: [PATCH v2 15/21] media: i2c: it6625: use early returns in it6625_update_timings_if_changed()
Date: Wed, 30 Sep 2026 14:41:33 +0800	[thread overview]
Message-ID: <20260930-upstream-it6625-follow-up-patch-v2-15-e353f887e7fa@ite.com.tw> (raw)
In-Reply-To: <20260930-upstream-it6625-follow-up-patch-v2-0-e353f887e7fa@ite.com.tw>

From: Hermes Wu <Hermes.wu@ite.com.tw>

Convert the if/else if/else chain that only ever assigns a single
ret value to early returns. guard(mutex)(...) is scoped to the whole
function body, so an early return still unlocks correctly.

Signed-off-by: Hermes Wu <Hermes.wu@ite.com.tw>
---
 drivers/media/i2c/it6625.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/drivers/media/i2c/it6625.c b/drivers/media/i2c/it6625.c
index cb201dea540a0ad0953b55bef5ea6d8e8f16d5b1..c972a74dd5d63655d531579cfd4e8dc3f72cb7ae 100644
--- a/drivers/media/i2c/it6625.c
+++ b/drivers/media/i2c/it6625.c
@@ -1454,20 +1454,17 @@ static int
 it6625_update_timings_if_changed(struct it6625 *it6625,
 				 const struct v4l2_dv_timings *timings)
 {
-	int ret;
-
 	guard(mutex)(&it6625->it6625_lock);
-	if (v4l2_match_dv_timings(&it6625->timings, timings, 0, false)) {
-		ret = 0;
-	} else if (!v4l2_valid_dv_timings(timings, it6625_get_timings_cap(it6625),
-					  NULL, NULL)) {
-		ret = -ERANGE;
-	} else {
-		it6625->timings = *timings;
-		ret = 1;
-	}
 
-	return ret;
+	if (v4l2_match_dv_timings(&it6625->timings, timings, 0, false))
+		return 0;
+
+	if (!v4l2_valid_dv_timings(timings, it6625_get_timings_cap(it6625), NULL, NULL))
+		return -ERANGE;
+
+	it6625->timings = *timings;
+
+	return 1;
 }
 
 static int it6625_enum_dv_timings(struct v4l2_subdev *sd,

-- 
2.34.1



  parent reply	other threads:[~2026-09-30  6:42 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-30  6:41 [PATCH v2 00/21] media: i2c: it6625: address review feedback and adopt subdev state Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 01/21] dt-bindings: media: ite,it6625: document the default CSI-2 bus type Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 02/21] media: i2c: it6625: propagate initial-setup and control-update errors Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 03/21] media: i2c: it6625: default the debug module parameter to 0 Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 04/21] media: i2c: it6625: drop unused bus field from struct it6625 Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 05/21] media: i2c: it6625: drop stale GCC < 4.4.6 workaround Hermes Wu via B4 Relay
2026-09-30 15:31   ` Hans Verkuil
2026-09-30  6:41 ` [PATCH v2 06/21] media: i2c: it6625: use unsigned int loop indices in table lookups Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 07/21] media: i2c: it6625: drop redundant parentheses in status helpers Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 08/21] media: i2c: it6625: make the audio sampling-rate table static const Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 09/21] media: i2c: it6625: tidy CEC buffer init and a continuation line Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 10/21] media: i2c: it6625: clean up it6625_wait_for_status() Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 11/21] media: i2c: it6625: use unsigned int indices in EDID read/write Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 12/21] media: i2c: it6625: use unaligned/units helpers to decode pixel clock Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 13/21] media: i2c: it6625: decode detected timings via typed register structs Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 14/21] media: i2c: it6625: fix link-frequency reporting for one-/two-trio C-PHY Hermes Wu via B4 Relay
2026-09-30  6:41 ` Hermes Wu via B4 Relay [this message]
2026-09-30  6:41 ` [PATCH v2 16/21] media: i2c: it6625: drop the private CSI-format name table Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 17/21] media: i2c: it6625: require a DT endpoint and simplify endpoint parsing Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 18/21] media: i2c: it6625: finish reverse fir-tree declaration order Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 19/21] media: i2c: it6625: fold subdev initialization into probe Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 20/21] media: i2c: it6625: use centrally managed active state Hermes Wu via B4 Relay
2026-09-30  6:41 ` [PATCH v2 21/21] media: i2c: it6625: use enable_streams and disable_streams Hermes Wu via B4 Relay

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