linux-kernel - [PATCH v3 1/2] devres: Switch to use dev_err

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Message-ID: <20240301175641.270020-2-andriy.shevchenko@linux.intel.com>
Date: Fri,  1 Mar 2024 19:55:36 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	linux-kernel@...r.kernel.org
Cc: Andrew Morton <akpm@...ux-foundation.org>,
	Philipp Stanner <pstanner@...hat.com>
Subject: [PATCH v3 1/2] devres: Switch to use dev_err_probe() for unification

The devm_*() APIs are supposed to be called during the ->probe() stage.
Many drivers (especially new ones) have switched to use dev_err_probe()
for error messaging for the sake of unification. Let's do the same in
the devres APIs.

Reviewed-by: Philipp Stanner <pstanner@...hat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 lib/devres.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/lib/devres.c b/lib/devres.c
index c44f104b58d5..f38e8297ad5a 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -125,12 +125,13 @@ __devm_ioremap_resource(struct device *dev, const struct resource *res,
 	resource_size_t size;
 	void __iomem *dest_ptr;
 	char *pretty_name;
+	int ret;
 
 	BUG_ON(!dev);
 
 	if (!res || resource_type(res) != IORESOURCE_MEM) {
-		dev_err(dev, "invalid resource %pR\n", res);
-		return IOMEM_ERR_PTR(-EINVAL);
+		ret = dev_err_probe(dev, -EINVAL, "invalid resource %pR\n", res);
+		return IOMEM_ERR_PTR(ret);
 	}
 
 	if (type == DEVM_IOREMAP && res->flags & IORESOURCE_MEM_NONPOSTED)
@@ -144,20 +145,20 @@ __devm_ioremap_resource(struct device *dev, const struct resource *res,
 	else
 		pretty_name = devm_kstrdup(dev, dev_name(dev), GFP_KERNEL);
 	if (!pretty_name) {
-		dev_err(dev, "can't generate pretty name for resource %pR\n", res);
-		return IOMEM_ERR_PTR(-ENOMEM);
+		ret = dev_err_probe(dev, -ENOMEM, "can't generate pretty name for resource %pR\n", res);
+		return IOMEM_ERR_PTR(ret);
 	}
 
 	if (!devm_request_mem_region(dev, res->start, size, pretty_name)) {
-		dev_err(dev, "can't request region for resource %pR\n", res);
-		return IOMEM_ERR_PTR(-EBUSY);
+		ret = dev_err_probe(dev, -EBUSY, "can't request region for resource %pR\n", res);
+		return IOMEM_ERR_PTR(ret);
 	}
 
 	dest_ptr = __devm_ioremap(dev, res->start, size, type);
 	if (!dest_ptr) {
-		dev_err(dev, "ioremap failed for resource %pR\n", res);
 		devm_release_mem_region(dev, res->start, size);
-		dest_ptr = IOMEM_ERR_PTR(-ENOMEM);
+		ret = dev_err_probe(dev, -ENOMEM, "ioremap failed for resource %pR\n", res);
+		return IOMEM_ERR_PTR(ret);
 	}
 
 	return dest_ptr;
-- 
2.43.0.rc1.1.gbec44491f096