diff mbox

[3/4] axonram: Return directly after a failed kzalloc() in axon_ram_probe()

Message ID 43bc7b50-b59b-89e9-9139-ae8a716016a7@users.sourceforge.net (mailing list archive)
State Not Applicable
Headers show

Commit Message

SF Markus Elfring Aug. 3, 2017, 7:15 p.m. UTC 
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Thu, 3 Aug 2017 20:23:57 +0200

* Return directly after a call of the function "kzalloc" failed
  at the beginning.

* Delete a repeated check for the local variable "bank"
  which became unnecessary with this refactoring.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 arch/powerpc/sysdev/axonram.c | 39 +++++++++++++++++----------------------
 1 file changed, 17 insertions(+), 22 deletions(-)
diff mbox

Patch

diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c
index bf1506ec2ca4..93cc902350db 100644
--- a/arch/powerpc/sysdev/axonram.c
+++ b/arch/powerpc/sysdev/axonram.c
@@ -192,10 +192,8 @@  static int axon_ram_probe(struct platform_device *device)
 			device->dev.of_node->full_name);
 
 	bank = kzalloc(sizeof(*bank), GFP_KERNEL);
-	if (bank == NULL) {
-		rc = -ENOMEM;
-		goto failed;
-	}
+	if (!bank)
+		return -ENOMEM;
 
 	device->dev.platform_data = bank;
 
@@ -291,25 +289,22 @@  static int axon_ram_probe(struct platform_device *device)
 	return 0;
 
 failed:
-	if (bank != NULL) {
-		if (bank->irq_id)
-			free_irq(bank->irq_id, device);
-		if (bank->disk != NULL) {
-			if (bank->disk->major > 0)
-				unregister_blkdev(bank->disk->major,
-						bank->disk->disk_name);
-			if (bank->disk->flags & GENHD_FL_UP)
-				del_gendisk(bank->disk);
-			put_disk(bank->disk);
-		}
-		kill_dax(bank->dax_dev);
-		put_dax(bank->dax_dev);
-		device->dev.platform_data = NULL;
-		if (bank->io_addr != 0)
-			iounmap((void __iomem *) bank->io_addr);
-		kfree(bank);
+	if (bank->irq_id)
+		free_irq(bank->irq_id, device);
+	if (bank->disk != NULL) {
+		if (bank->disk->major > 0)
+			unregister_blkdev(bank->disk->major,
+					bank->disk->disk_name);
+		if (bank->disk->flags & GENHD_FL_UP)
+			del_gendisk(bank->disk);
+		put_disk(bank->disk);
 	}
-
+	kill_dax(bank->dax_dev);
+	put_dax(bank->dax_dev);
+	device->dev.platform_data = NULL;
+	if (bank->io_addr != 0)
+		iounmap((void __iomem *) bank->io_addr);
+	kfree(bank);
 	return rc;
 }