rtc: ds1553: clean up ds1553_nvram_read()/ds1553_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>

diff --git a/drivers/rtc/rtc-ds1553.c b/drivers/rtc/rtc-ds1553.c
index a24e091..38422ab 100644 (file)
--- a/drivers/rtc/rtc-ds1553.c
+++ b/drivers/rtc/rtc-ds1553.c
@@ -245,7 +245,7 @@ static ssize_t ds1553_nvram_read(struct file *filp, struct kobject *kobj,
        void __iomem *ioaddr = pdata->ioaddr;
        ssize_t count;
 
-       for (count = 0; size > 0 && pos < RTC_OFFSET; count++, size--)
+       for (count = 0; count < size; count++)
                *buf++ = readb(ioaddr + pos++);
        return count;
 }
@@ -260,7 +260,7 @@ static ssize_t ds1553_nvram_write(struct file *filp, struct kobject *kobj,
        void __iomem *ioaddr = pdata->ioaddr;
        ssize_t count;
 
-       for (count = 0; size > 0 && pos < RTC_OFFSET; count++, size--)
+       for (count = 0; count < size; count++)
                writeb(*buf++, ioaddr + pos++);
        return count;
 }