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staging: comedi: ni_660x: fix missing break in switch statement

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Add missing break statement in order to prevent the code from falling
through to the default case and return -EINVAL every time.

This bug was found thanks to the ongoing efforts to enable
-Wimplicit-fallthrough.

Fixes: aa94f28888 ("staging: comedi: ni_660x: tidy up ni_660x_set_pfi_routing()")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gustavo A. R. Silva 2019-02-12 12:44:50 -06:00 committed by Greg Kroah-Hartman
parent 277c8e8b81
commit 479826cc86
1 changed files with 1 additions and 0 deletions
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1
drivers/staging/comedi/drivers/ni_660x.c
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@ -656,6 +656,7 @@ static int ni_660x_set_pfi_routing(struct comedi_device *dev,
case NI_660X_PFI_OUTPUT_DIO:
if (chan > 31)
return -EINVAL;
break;
default:
return -EINVAL;
}