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mfd: Use sysfs_emit() to instead of scnprintf()

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Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.

Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/202212021528368292334@zte.com.cn
This commit is contained in:
ye xingchen 2022-12-02 15:28:36 +08:00 committed by Lee Jones
parent 5ec32a3e40
commit 8cc5e62bae
2 changed files with 4 additions and 5 deletions
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7
drivers/mfd/kempld-core.c
View file

@ -349,7 +349,7 @@ static ssize_t pld_version_show(struct device *dev,
{
struct kempld_device_data *pld = dev_get_drvdata(dev);
return scnprintf(buf, PAGE_SIZE, "%s\n", pld->info.version);
return sysfs_emit(buf, "%s\n", pld->info.version);
}
static ssize_t pld_specification_show(struct device *dev,
@ -357,8 +357,7 @@ static ssize_t pld_specification_show(struct device *dev,
{
struct kempld_device_data *pld = dev_get_drvdata(dev);
return scnprintf(buf, PAGE_SIZE, "%d.%d\n", pld->info.spec_major,
pld->info.spec_minor);
return sysfs_emit(buf, "%d.%d\n", pld->info.spec_major, pld->info.spec_minor);
}
static ssize_t pld_type_show(struct device *dev,
@ -366,7 +365,7 @@ static ssize_t pld_type_show(struct device *dev,
{
struct kempld_device_data *pld = dev_get_drvdata(dev);
return scnprintf(buf, PAGE_SIZE, "%s\n", kempld_get_type_string(pld));
return sysfs_emit(buf, "%s\n", kempld_get_type_string(pld));
}
static DEVICE_ATTR_RO(pld_version);

2
drivers/mfd/lm3533-core.c
View file

@ -286,7 +286,7 @@ static ssize_t show_output(struct device *dev,
val = (val & mask) >> shift;
return scnprintf(buf, PAGE_SIZE, "%u\n", val);
return sysfs_emit(buf, "%u\n", val);
}
static ssize_t store_output(struct device *dev,