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authorGuenter Roeck <linux@roeck-us.net>2021-03-21 20:49:10 -0700
committerGuenter Roeck <linux@roeck-us.net>2021-04-20 06:50:14 -0700
commit1f4d4af4d7a1c794a4f003f75fcfd38fafb5dff3 (patch)
tree694363ce77aef2c1e572a2962d30ba72f8f6648a /drivers/hwmon/ltc2945.c
parentf807e8be46991a5a58774a4d6344359b01c949e8 (diff)
hwmon: replace snprintf in show functions with sysfs_emit
coccicheck complains about the use of snprintf() in sysfs show functions. drivers/hwmon/ina3221.c:701:8-16: WARNING: use scnprintf or sprintf This results in a large number of patch submissions. Fix it all in one go using the following coccinelle rules. Use sysfs_emit instead of scnprintf or sprintf since that makes more sense. @depends on patch@ identifier show, dev, attr, buf; @@ ssize_t show(struct device *dev, struct device_attribute *attr, char *buf) { <... return - snprintf(buf, \( PAGE_SIZE \| PAGE_SIZE - 1 \), + sysfs_emit(buf, ...); ...> } @depends on patch@ identifier show, dev, attr, buf, rc; @@ ssize_t show(struct device *dev, struct device_attribute *attr, char *buf) { <... rc = - snprintf(buf, \( PAGE_SIZE \| PAGE_SIZE - 1 \), + sysfs_emit(buf, ...); ...> } While at it, remove unnecessary braces and as well as unnecessary else after return statements to address checkpatch warnings in the resulting patch. Cc: Zihao Tang <tangzihao1@hisilicon.com> Cc: Jay Fang <f.fangjian@huawei.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/ltc2945.c')
-rw-r--r--drivers/hwmon/ltc2945.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hwmon/ltc2945.c b/drivers/hwmon/ltc2945.c
index ba9c868a8641..9adebb59f604 100644
--- a/drivers/hwmon/ltc2945.c
+++ b/drivers/hwmon/ltc2945.c
@@ -226,7 +226,7 @@ static ssize_t ltc2945_value_show(struct device *dev,
value = ltc2945_reg_to_val(dev, attr->index);
if (value < 0)
return value;
- return snprintf(buf, PAGE_SIZE, "%lld\n", value);
+ return sysfs_emit(buf, "%lld\n", value);
}
static ssize_t ltc2945_value_store(struct device *dev,
@@ -333,7 +333,7 @@ static ssize_t ltc2945_bool_show(struct device *dev,
if (fault) /* Clear reported faults in chip register */
regmap_update_bits(regmap, LTC2945_FAULT, attr->index, 0);
- return snprintf(buf, PAGE_SIZE, "%d\n", !!fault);
+ return sysfs_emit(buf, "%d\n", !!fault);
}
/* Input voltages */