linux-kernel - [PATCH 4.1 053/267] iio:accel:bmc150-accel: fix counting direction

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Date:	Fri, 31 Jul 2015 12:38:24 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Hartmut Knaack <knaack.h@....de>,
	Octavian Purdila <octavian.purdila@...el.com>,
	Jonathan Cameron <jic23@...nel.org>
Subject: [PATCH 4.1 053/267] iio:accel:bmc150-accel: fix counting direction

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

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

From: Hartmut Knaack <knaack.h@....de>

commit 7a1d0d91c94305fa5802a53df3a54c0ea1963c48 upstream.

In bmc150_accel_unregister_triggers() triggers should be unregistered in
reverse order of registration. Trigger registration starts with number 0,
counting up. In consequence, trigger number needs to be count down here.

Signed-off-by: Hartmut Knaack <knaack.h@....de>
Reviewed-by: Octavian Purdila <octavian.purdila@...el.com>
Signed-off-by: Jonathan Cameron <jic23@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/iio/accel/bmc150-accel.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/iio/accel/bmc150-accel.c
+++ b/drivers/iio/accel/bmc150-accel.c
@@ -1465,7 +1465,7 @@ static void bmc150_accel_unregister_trig
 {
 	int i;
 
-	for (i = from; i >= 0; i++) {
+	for (i = from; i >= 0; i--) {
 		if (data->triggers[i].indio_trig) {
 			iio_trigger_unregister(data->triggers[i].indio_trig);
 			data->triggers[i].indio_trig = NULL;


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