Messages in this thread Patch in this message | | | From | Andy Shevchenko <> | Subject | [PATCH v1 04/14] extcon: use sysfs_emit() to instead of sprintf() | Date | Wed, 22 Mar 2023 16:39:55 +0200 |
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Follow the advice of the Documentation/filesystems/sysfs.rst that show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- drivers/extcon/extcon.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c index 70e9755ba2bc..ac84f4aafc69 100644 --- a/drivers/extcon/extcon.c +++ b/drivers/extcon/extcon.c @@ -370,12 +370,12 @@ static ssize_t state_show(struct device *dev, struct device_attribute *attr, struct extcon_dev *edev = dev_get_drvdata(dev); if (edev->max_supported == 0) - return sprintf(buf, "%u\n", edev->state); + return sysfs_emit(buf, "%u\n", edev->state); for (i = 0; i < edev->max_supported; i++) { - count += sprintf(buf + count, "%s=%d\n", - extcon_info[edev->supported_cable[i]].name, - !!(edev->state & BIT(i))); + count += sysfs_emit_at(buf, count, "%s=%d\n", + extcon_info[edev->supported_cable[i]].name, + !!(edev->state & BIT(i))); } return count; @@ -387,7 +387,7 @@ static ssize_t name_show(struct device *dev, struct device_attribute *attr, { struct extcon_dev *edev = dev_get_drvdata(dev); - return sprintf(buf, "%s\n", edev->name); + return sysfs_emit(buf, "%s\n", edev->name); } static DEVICE_ATTR_RO(name); @@ -398,8 +398,8 @@ static ssize_t cable_name_show(struct device *dev, attr_name); int i = cable->cable_index; - return sprintf(buf, "%s\n", - extcon_info[cable->edev->supported_cable[i]].name); + return sysfs_emit(buf, "%s\n", + extcon_info[cable->edev->supported_cable[i]].name); } static ssize_t cable_state_show(struct device *dev, @@ -410,8 +410,8 @@ static ssize_t cable_state_show(struct device *dev, int i = cable->cable_index; - return sprintf(buf, "%d\n", - extcon_get_state(cable->edev, cable->edev->supported_cable[i])); + return sysfs_emit(buf, "%d\n", + extcon_get_state(cable->edev, cable->edev->supported_cable[i])); } /** -- 2.40.0.1.gaa8946217a0b
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