linux-kernel - [PATCH v6 linux-next] usb: typec: nb7vpq904m: Remove unneeded indentation

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Message-Id: <20240506162829.5223-1-prosunofficial@gmail.com>
Date: Mon,  6 May 2024 21:58:29 +0530
From: R Sundar <prosunofficial@...il.com>
To: heikki.krogerus@...ux.intel.com,
	gregkh@...uxfoundation.org,
	dmitry.baryshkov@...aro.org,
	neil.armstrong@...aro.org,
	christophe.jaillet@...adoo.fr,
	u.kleine-koenig@...gutronix.de
Cc: skhan@...uxfoundation.org,
	javier.carrasco.cruz@...il.com,
	linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	R Sundar <prosunofficial@...il.com>
Subject: [PATCH v6 linux-next] usb: typec: nb7vpq904m: Remove unneeded indentation

In function nb7vpq904m_parse_data_lanes_mapping(), the "if (ep)"
condition is basically the entire function. Making the code a bit more
readable by inverting the condition so that the function returns
immediately if there is no "ep".

Signed-off-by: R Sundar <prosunofficial@...il.com>
---

Fixed indentation in common path according to comments received on other patch
as below:

[ Nit, this function should be rewritten to not work like this, the
"common" path should not be indented, but only the exception (i.e. bail
if ep is not allocated properly.) ]
https://lore.kernel.org/all/2024041103-doornail-professor-7c1e@gregkh/

Goal is to get rid of of_node_put,but sending this patch first to do one
thing at a time.

Changes since v1 - fixed the typo error for spell from identation to
indentation

Changes since v2 - Shifted the indentation to one level left for the
switch cases as per coding style.

Changes since v3 - Added descriptive subject for the patch and checked
from and sign-off having same name.

Changes since v4 - Fixed name in signed-off-by as in documents.

Changes since v5 - Modified the subject and commit message as suggested.

Patches link:
------------
v1  - https://lore.kernel.org/all/20240420145522.15018-1-prosunofficial@gmail.com/
v2  - https://lore.kernel.org/linux-usb/20240420164927.15290-1-prosunofficial@gmail.com/
v3  - https://lore.kernel.org/all/20240421011647.3027-1-prosunofficial@gmail.com/
v4  - https://lore.kernel.org/all/20240424150718.5006-1-prosunofficial@gmail.com/
v5  - https://lore.kernel.org/all/20240426164705.2717-1-prosunofficial@gmail.com/

 drivers/usb/typec/mux/nb7vpq904m.c | 68 +++++++++++++++---------------
 1 file changed, 35 insertions(+), 33 deletions(-)

diff --git a/drivers/usb/typec/mux/nb7vpq904m.c b/drivers/usb/typec/mux/nb7vpq904m.c
index b17826713753..ed93194b16cf 100644
--- a/drivers/usb/typec/mux/nb7vpq904m.c
+++ b/drivers/usb/typec/mux/nb7vpq904m.c
@@ -321,46 +321,48 @@ static int nb7vpq904m_parse_data_lanes_mapping(struct nb7vpq904m *nb7)
 
 	ep = of_graph_get_endpoint_by_regs(nb7->client->dev.of_node, 1, 0);
 
-	if (ep) {
-		ret = of_property_count_u32_elems(ep, "data-lanes");
-		if (ret == -EINVAL)
-			/* Property isn't here, consider default mapping */
-			goto out_done;
-		if (ret < 0)
-			goto out_error;
-
-		if (ret != DATA_LANES_COUNT) {
-			dev_err(&nb7->client->dev, "expected 4 data lanes\n");
-			ret = -EINVAL;
-			goto out_error;
-		}
+	if (!ep)
+		return 0;
 
-		ret = of_property_read_u32_array(ep, "data-lanes", data_lanes, DATA_LANES_COUNT);
-		if (ret)
-			goto out_error;
 
-		for (i = 0; i < ARRAY_SIZE(supported_data_lane_mapping); i++) {
-			for (j = 0; j < DATA_LANES_COUNT; j++) {
-				if (data_lanes[j] != supported_data_lane_mapping[i][j])
-					break;
-			}
+	ret = of_property_count_u32_elems(ep, "data-lanes");
+	if (ret == -EINVAL)
+		/* Property isn't here, consider default mapping */
+		goto out_done;
+	if (ret < 0)
+		goto out_error;
+
+	if (ret != DATA_LANES_COUNT) {
+		dev_err(&nb7->client->dev, "expected 4 data lanes\n");
+		ret = -EINVAL;
+		goto out_error;
+	}
 
-			if (j == DATA_LANES_COUNT)
+	ret = of_property_read_u32_array(ep, "data-lanes", data_lanes, DATA_LANES_COUNT);
+	if (ret)
+		goto out_error;
+
+	for (i = 0; i < ARRAY_SIZE(supported_data_lane_mapping); i++) {
+		for (j = 0; j < DATA_LANES_COUNT; j++) {
+			if (data_lanes[j] != supported_data_lane_mapping[i][j])
 				break;
 		}
 
-		switch (i) {
-		case NORMAL_LANE_MAPPING:
-			break;
-		case INVERT_LANE_MAPPING:
-			nb7->swap_data_lanes = true;
-			dev_info(&nb7->client->dev, "using inverted data lanes mapping\n");
+		if (j == DATA_LANES_COUNT)
 			break;
-		default:
-			dev_err(&nb7->client->dev, "invalid data lanes mapping\n");
-			ret = -EINVAL;
-			goto out_error;
-		}
+	}
+
+	switch (i) {
+	case NORMAL_LANE_MAPPING:
+		break;
+	case INVERT_LANE_MAPPING:
+		nb7->swap_data_lanes = true;
+		dev_info(&nb7->client->dev, "using inverted data lanes mapping\n");
+		break;
+	default:
+		dev_err(&nb7->client->dev, "invalid data lanes mapping\n");
+		ret = -EINVAL;
+		goto out_error;
 	}
 
 out_done:
-- 
2.34.1