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authorMario Limonciello <mario_limonciello@dell.com>2014-04-04 21:40:20 +0200
committerMatthew Garrett <matthew.garrett@nebula.com>2014-04-10 18:11:56 +0200
commit562c7cec1e92be85ade6f65fff107651e10ee2ed (patch)
tree5b84c1525c05563990c2397300881fef0f06d409 /drivers/platform
parentAdd WMI driver for controlling AlienFX features on some Alienware products (diff)
downloadlinux-562c7cec1e92be85ade6f65fff107651e10ee2ed.tar.xz
linux-562c7cec1e92be85ade6f65fff107651e10ee2ed.zip
alienware-wmi: cover some scenarios where memory allocations would fail
Intel test builder caught a few instances that should test if kzalloc failed to allocate memory as well as a scenario that platform_driver wasn't properly initialized. Signed-off-by: Mario Limonciello <mario_limonciello@dell.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/alienware-wmi.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/platform/x86/alienware-wmi.c b/drivers/platform/x86/alienware-wmi.c
index 3e17e996021c..541f9514f76f 100644
--- a/drivers/platform/x86/alienware-wmi.c
+++ b/drivers/platform/x86/alienware-wmi.c
@@ -368,12 +368,20 @@ static int alienware_zone_init(struct platform_device *dev)
zone_dev_attrs =
kzalloc(sizeof(struct device_attribute) * (quirks->num_zones + 1),
GFP_KERNEL);
+ if (!zone_dev_attrs)
+ return -ENOMEM;
+
zone_attrs =
kzalloc(sizeof(struct attribute *) * (quirks->num_zones + 2),
GFP_KERNEL);
+ if (!zone_attrs)
+ return -ENOMEM;
+
zone_data =
kzalloc(sizeof(struct platform_zone) * (quirks->num_zones),
GFP_KERNEL);
+ if (!zone_data)
+ return -ENOMEM;
for (i = 0; i < quirks->num_zones; i++) {
sprintf(buffer, "zone%02X", i);
@@ -546,9 +554,9 @@ module_init(alienware_wmi_init);
static void __exit alienware_wmi_exit(void)
{
- alienware_zone_exit(platform_device);
- remove_hdmi(platform_device);
if (platform_device) {
+ alienware_zone_exit(platform_device);
+ remove_hdmi(platform_device);
platform_device_unregister(platform_device);
platform_driver_unregister(&platform_driver);
}