linux-kernel - [PATCH 4.7 106/141] staging: comedi: adv_pci1760: Do not return EINVAL for CMDF_ROUND

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Message-Id: <20161006074453.268654905@linuxfoundation.org>
Date:   Thu,  6 Oct 2016 10:29:02 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Phil Turnbull <phil.turnbull@...cle.com>,
        Ian Abbott <abbotti@....co.uk>
Subject: [PATCH 4.7 106/141] staging: comedi: adv_pci1760: Do not return EINVAL for CMDF_ROUND_DOWN.

4.7-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Phil Turnbull <phil.turnbull@...cle.com>

commit c71f20ee76342376e3c4c67cdbe7421d8c4e886e upstream.

The CMDF_ROUND_DOWN case falls through and so always returns -EINVAL.

Fixes: 14b93bb6bbf0 ("staging: comedi: adv_pci_dio: separate out PCI-1760 support")
Signed-off-by: Phil Turnbull <phil.turnbull@...cle.com>
Reviewed-by: Ian Abbott <abbotti@....co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/staging/comedi/drivers/adv_pci1760.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/staging/comedi/drivers/adv_pci1760.c
+++ b/drivers/staging/comedi/drivers/adv_pci1760.c
@@ -196,6 +196,7 @@ static int pci1760_pwm_ns_to_div(unsigne
 		break;
 	case CMDF_ROUND_DOWN:
 		divisor = ns / PCI1760_PWM_TIMEBASE;
+		break;
 	default:
 		return -EINVAL;
 	}