[PATCH 1/4] dev_printk: add new dev_errp_probe() helper

From: Nuno Sa <nuno.sa@analog.com>
To: Petr Mladek <pmladek@suse.com>,
	Jonathan Cameron <jic23@kernel.org>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Olivier Moysan <olivier.moysan@foss.st.com>,
	Jyoti Bhayana <jbhayana@google.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Chris Down <chris@chrisdown.name>,
	John Ogness <john.ogness@linutronix.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <linux-kernel@vger.kernel.org>, <linux-iio@vger.kernel.org>
Subject: [PATCH 1/4] dev_printk: add new dev_errp_probe() helper
Date: Thu, 4 Apr 2024 13:06:23 +0200	[thread overview]
Message-ID: <20240404-dev-add_dev_errp_probe-v1-1-d18e3eb7ec3f@analog.com> (raw)
In-Reply-To: <20240404-dev-add_dev_errp_probe-v1-0-d18e3eb7ec3f@analog.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@analog.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 ae80a303c216..790144f6f99c 100644
--- a/include/linux/dev_printk.h
+++ b/include/linux/dev_printk.h
@@ -277,4 +277,9 @@ 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

