diff mbox

i2c: slave eeprom: clean up sysfs bin attribute read()/write()

Message ID 1437945391-27823-1-git-send-email-vz@mleia.com
State Accepted
Headers show

Commit Message

Vladimir Zapolskiy July 26, 2015, 9:16 p.m. UTC
The change removes redundant sysfs binary file boundary checks,
since this task is already done on caller side in fs/sysfs/file.c

Note, on file size overflow read() now returns 0, and this is a
correct and expected EOF notification according to POSIX.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
---
 drivers/i2c/i2c-slave-eeprom.c | 6 ------
 1 file changed, 6 deletions(-)

Comments

Wolfram Sang July 28, 2015, 6:11 a.m. UTC | #1
On Mon, Jul 27, 2015 at 12:16:31AM +0300, Vladimir Zapolskiy wrote:
> The change removes redundant sysfs binary file boundary checks,
> since this task is already done on caller side in fs/sysfs/file.c
> 
> Note, on file size overflow read() now returns 0, and this is a
> correct and expected EOF notification according to POSIX.
> 
> Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>

Applied to for-current, thanks!
diff mbox

Patch

diff --git a/drivers/i2c/i2c-slave-eeprom.c b/drivers/i2c/i2c-slave-eeprom.c
index 8223746..1da4496 100644
--- a/drivers/i2c/i2c-slave-eeprom.c
+++ b/drivers/i2c/i2c-slave-eeprom.c
@@ -80,9 +80,6 @@  static ssize_t i2c_slave_eeprom_bin_read(struct file *filp, struct kobject *kobj
 	struct eeprom_data *eeprom;
 	unsigned long flags;
 
-	if (off + count > attr->size)
-		return -EFBIG;
-
 	eeprom = dev_get_drvdata(container_of(kobj, struct device, kobj));
 
 	spin_lock_irqsave(&eeprom->buffer_lock, flags);
@@ -98,9 +95,6 @@  static ssize_t i2c_slave_eeprom_bin_write(struct file *filp, struct kobject *kob
 	struct eeprom_data *eeprom;
 	unsigned long flags;
 
-	if (off + count > attr->size)
-		return -EFBIG;
-
 	eeprom = dev_get_drvdata(container_of(kobj, struct device, kobj));
 
 	spin_lock_irqsave(&eeprom->buffer_lock, flags);