Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752801AbaKYKkp (ORCPT ); Tue, 25 Nov 2014 05:40:45 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:58119 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752733AbaKYKkj (ORCPT ); Tue, 25 Nov 2014 05:40:39 -0500 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Lars-Peter Clausen , Jonathan Cameron , Luis Henriques Subject: [PATCH 3.16.y-ckt 033/254] staging:iio:ade7758: Fix check if channels are enabled in prenable Date: Tue, 25 Nov 2014 10:36:23 +0000 Message-Id: <1416912004-5928-34-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1416912004-5928-1-git-send-email-luis.henriques@canonical.com> References: <1416912004-5928-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.16 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.16.7-ckt2 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Lars-Peter Clausen commit 79fa64eb2ee8ccb4bcad7f54caa2699730b10b22 upstream. We should check if a channel is enabled, not if no channels are enabled. Fixes: 550268ca1111 ("staging:iio: scrap scan_count and ensure all drivers use active_scan_mask") Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron Signed-off-by: Luis Henriques --- drivers/staging/iio/meter/ade7758_ring.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c index 628e902dd815..6e9006490742 100644 --- a/drivers/staging/iio/meter/ade7758_ring.c +++ b/drivers/staging/iio/meter/ade7758_ring.c @@ -87,7 +87,7 @@ static int ade7758_ring_preenable(struct iio_dev *indio_dev) { unsigned channel; - if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength)) + if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength)) return -EINVAL; channel = find_first_bit(indio_dev->active_scan_mask, -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/