From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 4 Mar 2015 19:15:41 +0000 (-0700)
Subject: staging: comedi: kcomedilib_main: (!foo) preferred over (foo == NULL)
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=4c36fdde64f858ce167ad69859c89b1a8c9b6fb0;p=deliverable%2Flinux.git

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

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>
---

diff --git a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
index 973f544e85e1..76bf5619fdd5 100644
--- a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
+++ b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
@@ -58,7 +58,7 @@ struct comedi_device *comedi_open(const char *filename)
 		retval = NULL;
 	up_read(&dev->attach_lock);
 
-	if (retval == NULL)
+	if (!retval)
 		comedi_dev_put(dev);
 
 	return retval;