linux-kernel - [PATCH v4 1/6] printk: add new dev_errp

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Date: Thu, 28 Mar 2024 17:22:01 +0100
From: Nuno Sa via B4 Relay <devnull+nuno.sa.analog.com@...nel.org>
To: linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org, 
 devicetree@...r.kernel.org
Cc: Nuno Sá <nuno.sa@...log.com>, 
 Jonathan Cameron <jic23@...nel.org>, Lars-Peter Clausen <lars@...afoo.de>, 
 Michael Hennerich <Michael.Hennerich@...log.com>, 
 Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Olivier Moysan <olivier.moysan@...s.st.com>, 
 Jyoti Bhayana <jbhayana@...gle.com>
Subject: [PATCH v4 1/6] printk: add new dev_errp_probe() helper

From: Nuno Sa <nuno.sa@...log.com>

This is similar to dev_err_probe() but for cases where an ERR_PTR() is
to be returned simplifying patterns like:

	dev_err_probe(dev, ret, ...);
	return ERR_PTR(ret)

Signed-off-by: Nuno Sa <nuno.sa@...log.com>
---
 include/linux/dev_printk.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/dev_printk.h b/include/linux/dev_printk.h
index 6bfe70decc9f..64484d092a77 100644
--- a/include/linux/dev_printk.h
+++ b/include/linux/dev_printk.h
@@ -276,4 +276,9 @@ do {									\
 
 __printf(3, 4) int dev_err_probe(const struct device *dev, int err, const char *fmt, ...);
 
+/* Simple helper for dev_err_probe() when ERR_PTR() is to be returned. */
+#define dev_errp_probe(dev, ___err, fmt, ...)	({		\
+	ERR_PTR(dev_err_probe(dev, ___err, fmt, ##__VA_ARGS__));	\
+})
+
 #endif /* _DEVICE_PRINTK_H_ */

-- 
2.44.0