crypto: omap-sham - Convert to devm_request_irq()

Using devm_request_irq() rather than request_irq().
So removing free_irq() calls from the probe error
path and the remove handler.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/omap-sham.c

@@ -1896,10 +1896,11 @@ static int omap_sham_probe(struct platform_device *pdev)
 	}
 	dd->phys_base = res.start;
 
-	err = request_irq(dd->irq, dd->pdata->intr_hdlr, IRQF_TRIGGER_LOW,
-			  dev_name(dev), dd);
+	err = devm_request_irq(dev, dd->irq, dd->pdata->intr_hdlr,
+			       IRQF_TRIGGER_NONE, dev_name(dev), dd);
 	if (err) {
-		dev_err(dev, "unable to request irq.\n");
+		dev_err(dev, "unable to request irq %d, err = %d\n",
+			dd->irq, err);
 		goto res_err;
 	}
 
@@ -1912,7 +1913,7 @@ static int omap_sham_probe(struct platform_device *pdev)
 		dev_err(dev, "unable to obtain RX DMA engine channel %u\n",
 			dd->dma);
 		err = -ENXIO;
-		goto dma_err;
+		goto res_err;
 	}
 
 	dd->flags |= dd->pdata->flags;
@@ -1950,8 +1951,6 @@ static int omap_sham_probe(struct platform_device *pdev)
 					&dd->pdata->algs_info[i].algs_list[j]);
 	pm_runtime_disable(dev);
 	dma_release_channel(dd->dma_lch);
-dma_err:
-	free_irq(dd->irq, dd);
 res_err:
 	kfree(dd);
 	dd = NULL;
@@ -1979,7 +1978,6 @@ static int omap_sham_remove(struct platform_device *pdev)
 	tasklet_kill(&dd->done_task);
 	pm_runtime_disable(&pdev->dev);
 	dma_release_channel(dd->dma_lch);
-	free_irq(dd->irq, dd);
 	kfree(dd);
 	dd = NULL;