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staging: comedi: remove superfluous retval = 0 in comedi_read()

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`comedi_read()` initializes `retval` to 0.  The other `retval = 0`
assignments are superfluous, so remove them.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ian Abbott 2015-10-12 17:21:26 +01:00 committed by Greg Kroah-Hartman
parent 42ea907d78
commit f84e27adfc
1 changed files with 0 additions and 3 deletions
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3
drivers/staging/comedi/comedi_fops.c
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@ -2504,8 +2504,6 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes,
if (!comedi_is_runflags_running(runflags)) {
if (comedi_is_runflags_in_error(runflags))
retval = -EPIPE;
else
retval = 0;
become_nonbusy = true;
break;
}
@ -2519,7 +2517,6 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes,
break;
}
if (!s->busy) {
retval = 0;
break;
}
if (s->busy != file) {