diff options
Diffstat (limited to 'drivers/staging/comedi/comedi_fops.c')
| -rw-r--r-- | drivers/staging/comedi/comedi_fops.c | 21 |
1 files changed, 3 insertions, 18 deletions
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index 190592ad0921..466dc95d5611 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -2480,15 +2480,7 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes, async = s->async; if (!nbytes) goto out; - if (!s->busy) { - retval = -EINVAL; - goto out; - } - if (s->busy != file) { - retval = -EACCES; - goto out; - } - if (async->cmd.flags & CMDF_WRITE) { + if (s->busy != file || (async->cmd.flags & CMDF_WRITE)) { retval = -EINVAL; goto out; } @@ -2520,15 +2512,8 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes, retval = -ERESTARTSYS; break; } - if (!s->busy) { - retval = -EINVAL; - break; - } - if (s->busy != file) { - retval = -EACCES; - break; - } - if (async->cmd.flags & CMDF_WRITE) { + if (s->busy != file || + (async->cmd.flags & CMDF_WRITE)) { retval = -EINVAL; break; } |