diff options
Diffstat (limited to 'arch/um/drivers/mmapper_kern.c')
| -rw-r--r-- | arch/um/drivers/mmapper_kern.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/arch/um/drivers/mmapper_kern.c b/arch/um/drivers/mmapper_kern.c index 8501e7d0015c..7e0619c2c2c6 100644 --- a/arch/um/drivers/mmapper_kern.c +++ b/arch/um/drivers/mmapper_kern.c @@ -37,13 +37,7 @@ static ssize_t mmapper_write(struct file *file, const char __user *buf, if (*ppos > mmapper_size) return -EINVAL; - if (count > mmapper_size - *ppos) - count = mmapper_size - *ppos; - - if (copy_from_user(&v_buf[*ppos], buf, count)) - return -EFAULT; - - return count; + return simple_write_to_buffer(v_buf, mmapper_size, ppos, buf, count); } static long mmapper_ioctl(struct file *file, unsigned int cmd, unsigned long arg) @@ -137,3 +131,4 @@ module_exit(mmapper_exit); MODULE_AUTHOR("Greg Lonnon <glonnon@ridgerun.com>"); MODULE_DESCRIPTION("DSPLinux simulator mmapper driver"); +MODULE_LICENSE("GPL"); |