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staging: comedi: amplc_pci224: (!foo) preferred over (foo == NULL)

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Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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H Hartley Sweeten 2015-03-04 12:15:30 -07:00 committed by Greg Kroah-Hartman
parent e285016076
commit 0048b9923d
1 changed files with 1 additions and 1 deletions
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drivers/staging/comedi/drivers/amplc_pci224.c
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@ -838,7 +838,7 @@ static int pci224_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
unsigned long flags; unsigned long flags;
/* Cannot handle null/empty chanlist. */ /* Cannot handle null/empty chanlist. */
if (cmd->chanlist == NULL || cmd->chanlist_len == 0) if (!cmd->chanlist || cmd->chanlist_len == 0)
return -EINVAL; return -EINVAL;
/* Determine which channels are enabled and their load order. */ /* Determine which channels are enabled and their load order. */