From 273e03041e6d48024a57682cbf7b61510f74ec64 Mon Sep 17 00:00:00 2001 From: Vladimir Zapolskiy Date: Mon, 27 Jul 2015 00:48:27 +0300 Subject: rtc: ds1305: clean up ds1305_nvram_read()/ds1305_nvram_write() The change removes redundant sysfs binary file boundary checks, since this task is already done on caller size in fs/sysfs/file.c Signed-off-by: Vladimir Zapolskiy Signed-off-by: Alexandre Belloni diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c index 12b0715..baa5d04 100644 --- a/drivers/rtc/rtc-ds1305.c +++ b/drivers/rtc/rtc-ds1305.c @@ -538,15 +538,6 @@ ds1305_nvram_read(struct file *filp, struct kobject *kobj, spi = container_of(kobj, struct spi_device, dev.kobj); - if (unlikely(off >= DS1305_NVRAM_LEN)) - return 0; - if (count >= DS1305_NVRAM_LEN) - count = DS1305_NVRAM_LEN; - if ((off + count) > DS1305_NVRAM_LEN) - count = DS1305_NVRAM_LEN - off; - if (unlikely(!count)) - return count; - addr = DS1305_NVRAM + off; msg_init(&m, x, &addr, count, NULL, buf); @@ -569,15 +560,6 @@ ds1305_nvram_write(struct file *filp, struct kobject *kobj, spi = container_of(kobj, struct spi_device, dev.kobj); - if (unlikely(off >= DS1305_NVRAM_LEN)) - return -EFBIG; - if (count >= DS1305_NVRAM_LEN) - count = DS1305_NVRAM_LEN; - if ((off + count) > DS1305_NVRAM_LEN) - count = DS1305_NVRAM_LEN - off; - if (unlikely(!count)) - return count; - addr = (DS1305_WRITE | DS1305_NVRAM) + off; msg_init(&m, x, &addr, count, buf, NULL); -- cgit v0.10.2