From 753f15833c4d782ee41e333f66bfe424a39680e6 Mon Sep 17 00:00:00 2001 From: Vladimir Zapolskiy Date: Mon, 27 Jul 2015 00:26:47 +0300 Subject: [PATCH] power: ds2780_battery: clean up eeprom read/write functions The change removes redundant sysfs binary file boundary checks while reading or writing "param_eeprom" or "user_eeprom", the checks are not needed, since this task is done on caller side in fs/sysfs/file.c Signed-off-by: Vladimir Zapolskiy Signed-off-by: Sebastian Reichel --- drivers/power/ds2780_battery.c | 20 ++------------------ 1 file changed, 2 insertions(+), 18 deletions(-) diff --git a/drivers/power/ds2780_battery.c b/drivers/power/ds2780_battery.c index a7a0427343f3..d3743d0ad55b 100644 --- a/drivers/power/ds2780_battery.c +++ b/drivers/power/ds2780_battery.c @@ -637,10 +637,6 @@ static ssize_t ds2780_read_param_eeprom_bin(struct file *filp, struct power_supply *psy = to_power_supply(dev); struct ds2780_device_info *dev_info = to_ds2780_device_info(psy); - count = min_t(loff_t, count, - DS2780_EEPROM_BLOCK1_END - - DS2780_EEPROM_BLOCK1_START + 1 - off); - return ds2780_read_block(dev_info, buf, DS2780_EEPROM_BLOCK1_START + off, count); } @@ -655,10 +651,6 @@ static ssize_t ds2780_write_param_eeprom_bin(struct file *filp, struct ds2780_device_info *dev_info = to_ds2780_device_info(psy); int ret; - count = min_t(loff_t, count, - DS2780_EEPROM_BLOCK1_END - - DS2780_EEPROM_BLOCK1_START + 1 - off); - ret = ds2780_write(dev_info, buf, DS2780_EEPROM_BLOCK1_START + off, count); if (ret < 0) @@ -676,7 +668,7 @@ static struct bin_attribute ds2780_param_eeprom_bin_attr = { .name = "param_eeprom", .mode = S_IRUGO | S_IWUSR, }, - .size = DS2780_EEPROM_BLOCK1_END - DS2780_EEPROM_BLOCK1_START + 1, + .size = DS2780_PARAM_EEPROM_SIZE, .read = ds2780_read_param_eeprom_bin, .write = ds2780_write_param_eeprom_bin, }; @@ -690,10 +682,6 @@ static ssize_t ds2780_read_user_eeprom_bin(struct file *filp, struct power_supply *psy = to_power_supply(dev); struct ds2780_device_info *dev_info = to_ds2780_device_info(psy); - count = min_t(loff_t, count, - DS2780_EEPROM_BLOCK0_END - - DS2780_EEPROM_BLOCK0_START + 1 - off); - return ds2780_read_block(dev_info, buf, DS2780_EEPROM_BLOCK0_START + off, count); } @@ -708,10 +696,6 @@ static ssize_t ds2780_write_user_eeprom_bin(struct file *filp, struct ds2780_device_info *dev_info = to_ds2780_device_info(psy); int ret; - count = min_t(loff_t, count, - DS2780_EEPROM_BLOCK0_END - - DS2780_EEPROM_BLOCK0_START + 1 - off); - ret = ds2780_write(dev_info, buf, DS2780_EEPROM_BLOCK0_START + off, count); if (ret < 0) @@ -729,7 +713,7 @@ static struct bin_attribute ds2780_user_eeprom_bin_attr = { .name = "user_eeprom", .mode = S_IRUGO | S_IWUSR, }, - .size = DS2780_EEPROM_BLOCK0_END - DS2780_EEPROM_BLOCK0_START + 1, + .size = DS2780_USER_EEPROM_SIZE, .read = ds2780_read_user_eeprom_bin, .write = ds2780_write_user_eeprom_bin, }; -- 2.20.1