linux-kernel - [PATCH -next] eeprom: idt_89hpesx: Drop kfree for memory allocated with devm

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Date:   Wed, 25 Jan 2017 14:09:52 +0000
From:   Wei Yongjun <weiyj.lk@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Serge Semin <fancer.lancer@...il.com>
Cc:     Wei Yongjun <weiyongjun1@...wei.com>, linux-kernel@...r.kernel.org
Subject: [PATCH -next] eeprom: idt_89hpesx: Drop kfree for memory allocated with devm_kzalloc

From: Wei Yongjun <weiyongjun1@...wei.com>

It's not necessary to free memory allocated with devm_kzalloc
and using kfree leads to a double free.

Fixes: cfad6425382e ("eeprom: Add IDT 89HPESx EEPROM/CSR driver")
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 drivers/misc/eeprom/idt_89hpesx.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/misc/eeprom/idt_89hpesx.c b/drivers/misc/eeprom/idt_89hpesx.c
index 25d47d0..f5f2c5a 100644
--- a/drivers/misc/eeprom/idt_89hpesx.c
+++ b/drivers/misc/eeprom/idt_89hpesx.c
@@ -1359,7 +1359,6 @@ static int idt_create_sysfs_files(struct idt_89hpesx_dev *pdev)
 	pdev->ee_file->size = pdev->eesize;
 	ret = sysfs_create_bin_file(&dev->kobj, pdev->ee_file);
 	if (ret != 0) {
-		kfree(pdev->ee_file);
 		dev_err(dev, "Failed to create EEPROM sysfs-node");
 		return ret;
 	}
@@ -1381,9 +1380,6 @@ static void idt_remove_sysfs_files(struct idt_89hpesx_dev *pdev)
 
 	/* Remove EEPROM sysfs file */
 	sysfs_remove_bin_file(&dev->kobj, pdev->ee_file);
-
-	/* Free memory allocated for bin_attribute structure */
-	kfree(pdev->ee_file);
 }
 
 /*