size_t len = iov_iter_count(from);
ssize_t ret = len;
- if (!user || len > PRINTKRB_RECORD_MAX)
+ if (len > PRINTKRB_RECORD_MAX)
return -EINVAL;
/* Ignore when user logging is disabled. */
};
ssize_t ret;
- if (!user)
- return -EBADF;
-
ret = mutex_lock_interruptible(&user->lock);
if (ret)
return ret;
struct devkmsg_user *user = file->private_data;
loff_t ret = 0;
- if (!user)
- return -EBADF;
if (offset)
return -ESPIPE;
struct printk_info info;
__poll_t ret = 0;
- if (!user)
- return EPOLLERR|EPOLLNVAL;
-
poll_wait(file, &log_wait, wait);
if (prb_read_valid_info(prb, atomic64_read(&user->seq), &info, NULL)) {
{
struct devkmsg_user *user = file->private_data;
- if (!user)
- return 0;
-
ratelimit_state_exit(&user->rs);
mutex_destroy(&user->lock);