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authorMarkus Elfring <elfring@users.sourceforge.net>2014-11-24 20:30:29 +0100
committerDarren Hart <dvhart@linux.intel.com>2014-12-03 10:10:14 -0800
commit0098181016dd45c1c417656ba36b87d9101cbb83 (patch)
treeadb5cead8a3f2307e94918ac9369c95e7b2166c9
parenta39f46df33c6847399f9b41b74ef09a4095fb996 (diff)
platform: x86: Deletion of checks before backlight_device_unregister()
The backlight_device_unregister() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> For msi-wmi.c: Acked-by: Anisse Astier <anisse@astier.eu> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
-rw-r--r--drivers/platform/x86/asus-laptop.c3
-rw-r--r--drivers/platform/x86/asus-wmi.c3
-rw-r--r--drivers/platform/x86/eeepc-laptop.c3
-rw-r--r--drivers/platform/x86/fujitsu-laptop.c6
-rw-r--r--drivers/platform/x86/ideapad-laptop.c3
-rw-r--r--drivers/platform/x86/intel_oaktrail.c3
-rw-r--r--drivers/platform/x86/msi-wmi.c3
-rw-r--r--drivers/platform/x86/sony-laptop.c3
-rw-r--r--drivers/platform/x86/toshiba_acpi.c3
9 files changed, 10 insertions, 20 deletions
diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index 7f4dc6f51f8a..11fac1a3977a 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -843,8 +843,7 @@ static int asus_backlight_init(struct asus_laptop *asus)
static void asus_backlight_exit(struct asus_laptop *asus)
{
- if (asus->backlight_device)
- backlight_device_unregister(asus->backlight_device);
+ backlight_device_unregister(asus->backlight_device);
asus->backlight_device = NULL;
}
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 21fc932da3a1..7543a56e0f45 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -1308,8 +1308,7 @@ static int asus_wmi_backlight_init(struct asus_wmi *asus)
static void asus_wmi_backlight_exit(struct asus_wmi *asus)
{
- if (asus->backlight_device)
- backlight_device_unregister(asus->backlight_device);
+ backlight_device_unregister(asus->backlight_device);
asus->backlight_device = NULL;
}
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index e4094b40a282..e5d50aa1e40f 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -1174,8 +1174,7 @@ static int eeepc_backlight_init(struct eeepc_laptop *eeepc)
static void eeepc_backlight_exit(struct eeepc_laptop *eeepc)
{
- if (eeepc->backlight_device)
- backlight_device_unregister(eeepc->backlight_device);
+ backlight_device_unregister(eeepc->backlight_device);
eeepc->backlight_device = NULL;
}
diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index 2655d4a988f3..460715dcf7db 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -1154,8 +1154,7 @@ fail_hotkey1:
fail_hotkey:
platform_driver_unregister(&fujitsupf_driver);
fail_backlight:
- if (fujitsu->bl_device)
- backlight_device_unregister(fujitsu->bl_device);
+ backlight_device_unregister(fujitsu->bl_device);
fail_sysfs_group:
sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
&fujitsupf_attribute_group);
@@ -1179,8 +1178,7 @@ static void __exit fujitsu_cleanup(void)
platform_driver_unregister(&fujitsupf_driver);
- if (fujitsu->bl_device)
- backlight_device_unregister(fujitsu->bl_device);
+ backlight_device_unregister(fujitsu->bl_device);
sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
&fujitsupf_attribute_group);
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index ed494f37c40f..31630612dd80 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -729,8 +729,7 @@ static int ideapad_backlight_init(struct ideapad_private *priv)
static void ideapad_backlight_exit(struct ideapad_private *priv)
{
- if (priv->blightdev)
- backlight_device_unregister(priv->blightdev);
+ backlight_device_unregister(priv->blightdev);
priv->blightdev = NULL;
}
diff --git a/drivers/platform/x86/intel_oaktrail.c b/drivers/platform/x86/intel_oaktrail.c
index 4bc960416785..0dd72cfb4426 100644
--- a/drivers/platform/x86/intel_oaktrail.c
+++ b/drivers/platform/x86/intel_oaktrail.c
@@ -271,8 +271,7 @@ static int oaktrail_backlight_init(void)
static void oaktrail_backlight_exit(void)
{
- if (oaktrail_bl_device)
- backlight_device_unregister(oaktrail_bl_device);
+ backlight_device_unregister(oaktrail_bl_device);
}
static int oaktrail_probe(struct platform_device *pdev)
diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c
index 70222f265f68..6d2bac0c463c 100644
--- a/drivers/platform/x86/msi-wmi.c
+++ b/drivers/platform/x86/msi-wmi.c
@@ -354,8 +354,7 @@ static void __exit msi_wmi_exit(void)
sparse_keymap_free(msi_wmi_input_dev);
input_unregister_device(msi_wmi_input_dev);
}
- if (backlight)
- backlight_device_unregister(backlight);
+ backlight_device_unregister(backlight);
}
module_init(msi_wmi_init);
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 26ad9ff12ac5..a48cdc77f182 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -3141,8 +3141,7 @@ static void sony_nc_backlight_setup(void)
static void sony_nc_backlight_cleanup(void)
{
- if (sony_bl_props.dev)
- backlight_device_unregister(sony_bl_props.dev);
+ backlight_device_unregister(sony_bl_props.dev);
}
static int sony_nc_add(struct acpi_device *device)
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 06362b7d3ad7..a3294690df37 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -1797,8 +1797,7 @@ static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
rfkill_destroy(dev->bt_rfk);
}
- if (dev->backlight_dev)
- backlight_device_unregister(dev->backlight_dev);
+ backlight_device_unregister(dev->backlight_dev);
if (dev->illumination_supported)
led_classdev_unregister(&dev->led_dev);