From: Fengguang Wu <fengguang.wu@intel.com>
To: Lance Ortiz <lance.ortiz@hp.com>
Cc: kernel-janitors@vger.kernel.org, Len Brown <len.brown@intel.com>,
linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org
Subject: [acpi:next 4/5] drivers/acpi/scan.c:328 acpi_device_remove_files() info: redundant null check on dev->pnp.str_obj calling kfree()
Date: Tue, 2 Oct 2012 15:39:52 +0800 [thread overview]
Message-ID: <20121002073952.GA24180@localhost> (raw)
Hi Lance,
FYI, there are new smatch warnings show up in
tree: git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux.git next
head: 10eaea0474b0078bb84ff9009329b83d3e30337f
commit: 2bc8195d56163f54d3036304efa8d71ab1091bf1 [4/5] ACPI: Add new sysfs interface to export device description
+ drivers/acpi/scan.c:328 acpi_device_remove_files() info: redundant null check on dev->pnp.str_obj calling kfree()
vim +328 drivers/acpi/scan.c
e49bd2dd (Zhang Rui 2006-12-08 312) result = device_create_file(&dev->dev, &dev_attr_eject);
0c526d96 (Alex Chiang 2009-05-14 313) end:
e49bd2dd (Zhang Rui 2006-12-08 314) return result;
^1da177e (Linus Torvalds 2005-04-16 315) }
^1da177e (Linus Torvalds 2005-04-16 316)
f883d9db (Patrick Mochel 2006-12-07 317) static void acpi_device_remove_files(struct acpi_device *dev)
^1da177e (Linus Torvalds 2005-04-16 318) {
f883d9db (Patrick Mochel 2006-12-07 319) acpi_status status;
f883d9db (Patrick Mochel 2006-12-07 320) acpi_handle temp;
^1da177e (Linus Torvalds 2005-04-16 321)
f883d9db (Patrick Mochel 2006-12-07 322) /*
2bc8195d (Lance Ortiz 2012-09-07 323) * If device has _STR, remove 'description' file
2bc8195d (Lance Ortiz 2012-09-07 324) */
2bc8195d (Lance Ortiz 2012-09-07 325) status = acpi_get_handle(dev->handle, "_STR", &temp);
2bc8195d (Lance Ortiz 2012-09-07 326) if (ACPI_SUCCESS(status)) {
2bc8195d (Lance Ortiz 2012-09-07 327) if (dev->pnp.str_obj != NULL)
2bc8195d (Lance Ortiz 2012-09-07 @328) kfree(dev->pnp.str_obj);
2bc8195d (Lance Ortiz 2012-09-07 329) device_remove_file(&dev->dev, &dev_attr_description);
2bc8195d (Lance Ortiz 2012-09-07 330) }
2bc8195d (Lance Ortiz 2012-09-07 331) /*
2bc8195d (Lance Ortiz 2012-09-07 332) * If device has _EJ0, remove 'eject' file.
f883d9db (Patrick Mochel 2006-12-07 333) */
f883d9db (Patrick Mochel 2006-12-07 334) status = acpi_get_handle(dev->handle, "_EJ0", &temp);
f883d9db (Patrick Mochel 2006-12-07 335) if (ACPI_SUCCESS(status))
f883d9db (Patrick Mochel 2006-12-07 336) device_remove_file(&dev->dev, &dev_attr_eject);
---
0-DAY kernel build testing backend Open Source Technology Centre
Fengguang Wu, Yuanhan Liu Intel Corporation
next reply other threads:[~2012-10-02 7:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-02 7:39 Fengguang Wu [this message]
2012-10-02 18:53 ` [acpi:next 4/5] drivers/acpi/scan.c:328 acpi_device_remove_files() info: redundant null check on dev->pnp.str_obj calling kfree() Ortiz, Lance E
2012-10-02 20:46 ` Dan Carpenter
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