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rtc: cmos: clean up cmos_nvram_read()/cmos_nvram_write() 

The change removes redundant sysfs binary file boundary checks, since
this task is already done on caller side in fs/sysfs/file.c

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Vladimir Zapolskiy 2015-07-27 00:48:26 +03:00 committed by Alexandre Belloni
parent 3c217e51d8
commit a3781639e1
1 changed files with 0 additions and 13 deletions
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13
drivers/rtc/rtc-cmos.c
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@ -467,13 +467,6 @@ cmos_nvram_read(struct file *filp, struct kobject *kobj,
{
int retval;
if (unlikely(off >= attr->size))
return 0;
if (unlikely(off < 0))
return -EINVAL;
if ((off + count) > attr->size)
count = attr->size - off;
off += NVRAM_OFFSET;
spin_lock_irq(&rtc_lock);
for (retval = 0; count; count--, off++, retval++) {
@ -498,12 +491,6 @@ cmos_nvram_write(struct file *filp, struct kobject *kobj,
int retval;
cmos = dev_get_drvdata(container_of(kobj, struct device, kobj));
if (unlikely(off >= attr->size))
return -EFBIG;
if (unlikely(off < 0))
return -EINVAL;
if ((off + count) > attr->size)
count = attr->size - off;
/* NOTE: on at least PCs and Ataris, the boot firmware uses a
* checksum on part of the NVRAM data. That's currently ignored