linux-kernel - [PATCH 02/32] media: dvbdev: Use %pe format specifier

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Message-Id: <20251013-ptr_err-v1-2-2c5efbd82952@chromium.org>
Date: Mon, 13 Oct 2025 14:14:42 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Linus Walleij <linus.walleij@...aro.org>, 
 Dmitry Torokhov <dmitry.torokhov@...il.com>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Hans Verkuil <hverkuil@...nel.org>, 
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 Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>, 
 Niklas Söderlund <niklas.soderlund+renesas@...natech.se>, 
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 Matthias Brugger <matthias.bgg@...il.com>, 
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 Martin Kepplinger <martink@...teo.de>, Purism Kernel Team <kernel@...i.sm>, 
 Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, Dafna Hirschfeld <dafna@...tmail.com>, 
 Heiko Stuebner <heiko@...ech.de>, 
 Sylwester Nawrocki <s.nawrocki@...sung.com>, 
 Krzysztof Kozlowski <krzk@...nel.org>, 
 Alim Akhtar <alim.akhtar@...sung.com>, 
 Yemike Abhilash Chandra <y-abhilashchandra@...com>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-mediatek@...ts.infradead.org, imx@...ts.linux.dev, 
 linux-renesas-soc@...r.kernel.org, linux-rockchip@...ts.infradead.org, 
 linux-samsung-soc@...r.kernel.org, linux-staging@...ts.linux.dev, 
 Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH 02/32] media: dvbdev: Use %pe format specifier

The %pe format specifier is designed to print error pointers. It prints
a symbolic error name (eg. -EINVAL) and it makes the code simpler by
omitting PTR_ERR()

This patch fixes this cocci report:
./dvb-core/dvbdev.c:575:48-55: WARNING: Consider using %pe to print PTR_ERR()

Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
 drivers/media/dvb-core/dvbdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index 9df7c213716aec54bab7fde2c94ac030696fe25f..8b980d371a45e4fec5368a7e90d4c42518b72e72 100644
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -571,8 +571,8 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
 			       MKDEV(DVB_MAJOR, minor),
 			       dvbdev, "dvb%d.%s%d", adap->num, dnames[type], id);
 	if (IS_ERR(clsdev)) {
-		pr_err("%s: failed to create device dvb%d.%s%d (%ld)\n",
-		       __func__, adap->num, dnames[type], id, PTR_ERR(clsdev));
+		pr_err("%s: failed to create device dvb%d.%s%d (%pe)\n",
+		       __func__, adap->num, dnames[type], id, clsdev);
 		if (new_node) {
 			list_del(&new_node->list_head);
 			kfree(dvbdevfops);

-- 
2.51.0.760.g7b8bcc2412-goog