On Thu, Jan 26, 2017 at 12:01:46PM +0300, Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote:
> "pdev->ee_file" was allocated with devm_kmalloc() so freeing it with
> kfree() is a double free. In fact, we don't need to free it at all.
>
> Fixes: cfad6425382e ("eeprom: Add IDT 89HPESx EEPROM/CSR driver")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
>
> diff --git a/drivers/misc/eeprom/idt_89hpesx.c b/drivers/misc/eeprom/idt_89hpesx.c
> index 25d47d09e1cb..f5f2c5a8d9b0 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);
> }
>
> /*
Just got the same patch a day earlier, but still thanks for the pointing the issue out.
Regards,
-Sergey
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