}
*ret_pointer = iov;
+ ret = -EFAULT;
+ if (!access_ok(VERIFY_READ, uvector, nr_segs*sizeof(*uvector)))
+ goto out;
+
/*
* Single unix specification:
* We should -EINVAL if an element length is not >= 0 and fitting an
char *dir_page;
int retval;
- retval = copy_mount_string(type, &kernel_type);
- if (retval < 0)
+ kernel_type = copy_mount_string(type);
+ retval = PTR_ERR(kernel_type);
+ if (IS_ERR(kernel_type))
goto out;
dir_page = getname(dir_name);
if (IS_ERR(dir_page))
goto out1;
- retval = copy_mount_string(dev_name, &kernel_dev);
- if (retval < 0)
+ kernel_dev = copy_mount_string(dev_name);
+ retval = PTR_ERR(kernel_dev);
+ if (IS_ERR(kernel_dev))
goto out2;
retval = copy_mount_options(data, &data_page);
if (!file->f_op)
goto out;
- ret = -EFAULT;
- if (!access_ok(VERIFY_READ, uvector, nr_segs*sizeof(*uvector)))
- goto out;
-
- tot_len = compat_rw_copy_check_uvector(type, uvector, nr_segs,
+ ret = compat_rw_copy_check_uvector(type, uvector, nr_segs,
UIO_FASTIOV, iovstack, &iov, 1);
- if (tot_len == 0) {
- ret = 0;
+ if (ret <= 0)
goto out;
- }
+ tot_len = ret;
ret = rw_verify_area(type, file, pos, tot_len);
if (ret < 0)
goto out;
struct file *file;
int fput_needed;
ssize_t ret;
+ loff_t pos;
file = fget_light(fd, &fput_needed);
if (!file)
return -EBADF;
- ret = compat_readv(file, vec, vlen, &file->f_pos);
+ pos = file->f_pos;
+ ret = compat_readv(file, vec, vlen, &pos);
+ file->f_pos = pos;
fput_light(file, fput_needed);
return ret;
}
struct file *file;
int fput_needed;
ssize_t ret;
+ loff_t pos;
file = fget_light(fd, &fput_needed);
if (!file)
return -EBADF;
- ret = compat_writev(file, vec, vlen, &file->f_pos);
+ pos = file->f_pos;
+ ret = compat_writev(file, vec, vlen, &pos);
+ file->f_pos = pos;
fput_light(file, fput_needed);
return ret;
}