dma: pl330: Simplify irq allocation

Use devm_request_irq function.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

drivers/dma/pl330.c

@@ -2923,7 +2923,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 	amba_set_drvdata(adev, pdmac);
 
 	irq = adev->irq[0];
-	ret = request_irq(irq, pl330_irq_handler, 0,
+	ret = devm_request_irq(&adev->dev, irq, pl330_irq_handler, 0,
 			dev_name(&adev->dev), pi);
 	if (ret)
 		return ret;
@@ -2931,7 +2931,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 	pi->pcfg.periph_id = adev->periphid;
 	ret = pl330_add(pi);
 	if (ret)
-		goto probe_err1;
+		return ret;
 
 	INIT_LIST_HEAD(&pdmac->desc_pool);
 	spin_lock_init(&pdmac->pool_lock);
@@ -3044,8 +3044,6 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 	}
 probe_err2:
 	pl330_del(pi);
-probe_err1:
-	free_irq(irq, pi);
 
 	return ret;
 }
@@ -3055,7 +3053,6 @@ static int pl330_remove(struct amba_device *adev)
 	struct dma_pl330_dmac *pdmac = amba_get_drvdata(adev);
 	struct dma_pl330_chan *pch, *_p;
 	struct pl330_info *pi;
-	int irq;
 
 	if (!pdmac)
 		return 0;
@@ -3082,9 +3079,6 @@ static int pl330_remove(struct amba_device *adev)
 
 	pl330_del(pi);
 
-	irq = adev->irq[0];
-	free_irq(irq, pi);
-
 	return 0;
 }