linux-kernel - [PATCH] PCI: vmd: Use devm_kasprintf instead of simple kasprintf

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Message-Id: <20220531132617.20517-1-subramanian.mohan@intel.com>
Date:   Tue, 31 May 2022 18:56:17 +0530
From:   subramanian.mohan@...el.com
To:     nirmal.patel@...ux.intel.com, jonathan.derrick@...ux.dev,
        lorenzo.pieralisi@....com, robh@...nel.org, kw@...ux.com,
        bhelgaas@...gle.com
Cc:     linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        mallikarjunappa.sangannavar@...el.com, srikanth.thokala@...el.com
Subject: [PATCH] PCI: vmd: Use devm_kasprintf instead of simple kasprintf

From: Subramanian Mohan <subramanian.mohan@...el.com>

Use devm_kasprintf instead of simple kasprintf to free the allocated memory
automatically when the device is freed.

Suggested-by: Srikanth Thokala <srikanth.thokala@...el.com>
Signed-off-by: Subramanian Mohan <subramanian.mohan@...el.com>
Acked-by: Nirmal Patel <nirmal.patel@...ux.intel.com>
---
 drivers/pci/controller/vmd.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c
index eb05cceab964..7a72948e001f 100644
--- a/drivers/pci/controller/vmd.c
+++ b/drivers/pci/controller/vmd.c
@@ -897,7 +897,8 @@ static int vmd_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	if (vmd->instance < 0)
 		return vmd->instance;
 
-	vmd->name = kasprintf(GFP_KERNEL, "vmd%d", vmd->instance);
+	vmd->name = devm_kasprintf(&dev->dev, GFP_KERNEL, "vmd%d",
+				   vmd->instance);
 	if (!vmd->name) {
 		err = -ENOMEM;
 		goto out_release_instance;
@@ -935,7 +936,6 @@ static int vmd_probe(struct pci_dev *dev, const struct pci_device_id *id)
 
  out_release_instance:
 	ida_simple_remove(&vmd_instance_ida, vmd->instance);
-	kfree(vmd->name);
 	return err;
 }
 
@@ -958,7 +958,6 @@ static void vmd_remove(struct pci_dev *dev)
 	vmd_detach_resources(vmd);
 	vmd_remove_irq_domain(vmd);
 	ida_simple_remove(&vmd_instance_ida, vmd->instance);
-	kfree(vmd->name);
 }
 
 #ifdef CONFIG_PM_SLEEP
-- 
2.17.1