diff options
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/device.c | 26 |
1 files changed, 1 insertions, 25 deletions
diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c index b25435736d44..22a290d0d5bf 100644 --- a/drivers/infiniband/hw/cxgb4/device.c +++ b/drivers/infiniband/hw/cxgb4/device.c @@ -68,32 +68,8 @@ static ssize_t debugfs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { struct c4iw_debugfs_data *d = file->private_data; - loff_t pos = *ppos; - loff_t avail = d->pos; - if (pos < 0) - return -EINVAL; - if (pos >= avail) - return 0; - if (count > avail - pos) - count = avail - pos; - - while (count) { - size_t len = 0; - - len = min((int)count, (int)d->pos - (int)pos); - if (copy_to_user(buf, d->buf + pos, len)) - return -EFAULT; - if (len == 0) - return -EINVAL; - - buf += len; - pos += len; - count -= len; - } - count = pos - *ppos; - *ppos = pos; - return count; + return simple_read_from_buffer(buf, count, ppos, d->buf, d->pos); } static int dump_qp(int id, void *p, void *data) |