The patch titled
Subject: devres: switch to use dev_err_probe() for unification
has been added to the -mm mm-nonmm-unstable branch. Its filename is
devres-switch-to-use-dev_err_probe-for-unification.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/devres-switch-to-use-dev_err_probe-for-unification.patch
This patch will later appear in the mm-nonmm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Subject: devres: switch to use dev_err_probe() for unification
Date: Wed, 3 Apr 2024 13:46:56 +0300
Patch series "devres: A couple of cleanups".
A couple of ad-hoc cleanups. No functional changes intended.
This patch (of 2):
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.
Link: https://lkml.kernel.org/r/20240403104820.557487-1-andriy.shevchenko@xxxxxxxxxxxxxxx
Link: https://lkml.kernel.org/r/20240403104820.557487-2-andriy.shevchenko@xxxxxxxxxxxxxxx
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Reviewed-by: Philipp Stanner <pstanner@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/devres.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
--- a/lib/devres.c~devres-switch-to-use-dev_err_probe-for-unification
+++ a/lib/devres.c
@@ -125,12 +125,13 @@ __devm_ioremap_resource(struct device *d
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 *d
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;
_
Patches currently in -mm which might be from andriy.shevchenko@xxxxxxxxxxxxxxx are
devres-switch-to-use-dev_err_probe-for-unification.patch
devres-dont-use-proxy-headers.patch
