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Message-Id: <1465501143-10445-3-git-send-email-chris.cesare@gmail.com> Date: Thu, 9 Jun 2016 15:39:03 -0400 From: Chris Cesare <chris.cesare@...il.com> To: abbotti@....co.uk Cc: hsweeten@...ionengravers.com, gregkh@...uxfoundation.org, devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org, Chris Cesare <chris.cesare@...il.com> Subject: [PATCH v2 2/2] staging: comedi: serial2002: Fix unnecessary cast styling issue checkpatch.pl warns that a cast of 1 to (long long) is unnecessary. Remove the cast and also add code to check and make sure that maxdata_list[chan] is not shifted too far, as suggested by Ian Abbott. Signed-off-by Chris Cesare <chris.cesare@...il.com> --- drivers/staging/comedi/drivers/serial2002.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/staging/comedi/drivers/serial2002.c b/drivers/staging/comedi/drivers/serial2002.c index b777946..0d33e52 100644 --- a/drivers/staging/comedi/drivers/serial2002.c +++ b/drivers/staging/comedi/drivers/serial2002.c @@ -379,7 +379,10 @@ static int serial2002_setup_subdevice(struct comedi_subdevice *s, range_table_list[chan] = (const struct comedi_lrange *)&range[j]; } - maxdata_list[chan] = ((long long)1 << cfg[j].bits) - 1; + if (cfg[j].bits < 32) + maxdata_list[chan] = (1u << cfg[j].bits) - 1; + else + maxdata_list[chan] = 0xffffffff; chan++; } } -- 2.7.4
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