crypto: omap-sham - Convert to devm_kzalloc()

Use devm_kzalloc() to make cleanup paths simpler.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/omap-sham.c

@@ -1870,7 +1870,7 @@ static int omap_sham_probe(struct platform_device *pdev)
 	int err, i, j;
 	u32 rev;
 
-	dd = kzalloc(sizeof(struct omap_sham_dev), GFP_KERNEL);
+	dd = devm_kzalloc(dev, sizeof(struct omap_sham_dev), GFP_KERNEL);
 	if (dd == NULL) {
 		dev_err(dev, "unable to alloc data struct.\n");
 		err = -ENOMEM;
@@ -1887,12 +1887,12 @@ static int omap_sham_probe(struct platform_device *pdev)
 	err = (dev->of_node) ? omap_sham_get_res_of(dd, dev, &res) :
 			       omap_sham_get_res_pdev(dd, pdev, &res);
 	if (err)
-		goto res_err;
+		goto data_err;
 
 	dd->io_base = devm_ioremap_resource(dev, &res);
 	if (IS_ERR(dd->io_base)) {
 		err = PTR_ERR(dd->io_base);
-		goto res_err;
+		goto data_err;
 	}
 	dd->phys_base = res.start;
 
@@ -1901,7 +1901,7 @@ static int omap_sham_probe(struct platform_device *pdev)
 	if (err) {
 		dev_err(dev, "unable to request irq %d, err = %d\n",
 			dd->irq, err);
-		goto res_err;
+		goto data_err;
 	}
 
 	dma_cap_zero(mask);
@@ -1913,7 +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 res_err;
+		goto data_err;
 	}
 
 	dd->flags |= dd->pdata->flags;
@@ -1951,9 +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);
-res_err:
-	kfree(dd);
-	dd = NULL;
 data_err:
 	dev_err(dev, "initialization failed.\n");
 
@@ -1978,8 +1975,6 @@ 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);
-	kfree(dd);
-	dd = NULL;
 
 	return 0;
 }