[PATCH] iio:trigger: Introduce the use of devm_kzalloc

[Himangi Saraogi <himangi774@gmail.com>]

This patch introduces the use of the managed version of kzalloc and
removes the kfrees in the probe and remove functions. Also, the labels
are renamed to order them.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
---
 drivers/staging/iio/trigger/iio-trig-bfin-timer.c | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
index 16f1a06..cc858aa 100644
--- a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
+++ b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
@@ -182,7 +182,7 @@ static int iio_bfin_tmr_trigger_probe(struct platform_device *pdev)
 	unsigned int config;
 	int ret;
 
-	st = kzalloc(sizeof(*st), GFP_KERNEL);
+	st = devm_kzalloc(&pdev->dev, sizeof(*st), GFP_KERNEL);
 	if (st == NULL) {
 		ret = -ENOMEM;
 		goto out;
@@ -192,12 +192,12 @@ static int iio_bfin_tmr_trigger_probe(struct platform_device *pdev)
 	if (!st->irq) {
 		dev_err(&pdev->dev, "No IRQs specified");
 		ret = -ENODEV;
-		goto out1;
+		goto out;
 	}
 
 	ret = iio_bfin_tmr_get_number(st->irq);
 	if (ret < 0)
-		goto out1;
+		goto out;
 
 	st->timer_num = ret;
 	st->t = &iio_bfin_timer_code[st->timer_num];
@@ -205,7 +205,7 @@ static int iio_bfin_tmr_trigger_probe(struct platform_device *pdev)
 	st->trig = iio_trigger_alloc("bfintmr%d", st->timer_num);
 	if (!st->trig) {
 		ret = -ENOMEM;
-		goto out1;
+		goto out;
 	}
 
 	st->trig->ops = &iio_bfin_tmr_trigger_ops;
@@ -213,14 +213,14 @@ static int iio_bfin_tmr_trigger_probe(struct platform_device *pdev)
 	iio_trigger_set_drvdata(st->trig, st);
 	ret = iio_trigger_register(st->trig);
 	if (ret)
-		goto out2;
+		goto out1;
 
 	ret = request_irq(st->irq, iio_bfin_tmr_trigger_isr,
 			  0, st->trig->name, st);
 	if (ret) {
 		dev_err(&pdev->dev,
 			"request IRQ-%d failed", st->irq);
-		goto out4;
+		goto out2;
 	}
 
 	config = PWM_OUT | PERIOD_CNT | IRQ_ENA;
@@ -260,12 +260,10 @@ static int iio_bfin_tmr_trigger_probe(struct platform_device *pdev)
 	return 0;
 out_free_irq:
 	free_irq(st->irq, st);
-out4:
-	iio_trigger_unregister(st->trig);
 out2:
-	iio_trigger_put(st->trig);
+	iio_trigger_unregister(st->trig);
 out1:
-	kfree(st);
+	iio_trigger_put(st->trig);
 out:
 	return ret;
 }
@@ -280,7 +278,6 @@ static int iio_bfin_tmr_trigger_remove(struct platform_device *pdev)
 	free_irq(st->irq, st);
 	iio_trigger_unregister(st->trig);
 	iio_trigger_put(st->trig);
-	kfree(st);
 
 	return 0;
 }
-- 
1.9.1