hp-wmi: check for allocation failures

rfkill_alloc() returns NULL on failure.  Check for it, to make the
static checkers happy.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index e2faa3cbb792e3f154d83db97ca0f9f45ed44402..387183a2d6ddd4405c8430137e8da3c4595b5407 100644 (file)
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -634,6 +634,8 @@ static int __devinit hp_wmi_rfkill_setup(struct platform_device *device)
                                           RFKILL_TYPE_WLAN,
                                           &hp_wmi_rfkill_ops,
                                           (void *) HPWMI_WIFI);
+               if (!wifi_rfkill)
+                       return -ENOMEM;
                rfkill_init_sw_state(wifi_rfkill,
                                     hp_wmi_get_sw_state(HPWMI_WIFI));
                rfkill_set_hw_state(wifi_rfkill,
@@ -648,6 +650,10 @@ static int __devinit hp_wmi_rfkill_setup(struct platform_device *device)
                                                RFKILL_TYPE_BLUETOOTH,
                                                &hp_wmi_rfkill_ops,
                                                (void *) HPWMI_BLUETOOTH);
+               if (!bluetooth_rfkill) {
+                       err = -ENOMEM;
+                       goto register_wifi_error;
+               }
                rfkill_init_sw_state(bluetooth_rfkill,
                                     hp_wmi_get_sw_state(HPWMI_BLUETOOTH));
                rfkill_set_hw_state(bluetooth_rfkill,
@@ -662,6 +668,10 @@ static int __devinit hp_wmi_rfkill_setup(struct platform_device *device)
                                           RFKILL_TYPE_WWAN,
                                           &hp_wmi_rfkill_ops,
                                           (void *) HPWMI_WWAN);
+               if (!wwan_rfkill) {
+                       err = -ENOMEM;
+                       goto register_bluetooth_error;
+               }
                rfkill_init_sw_state(wwan_rfkill,
                                     hp_wmi_get_sw_state(HPWMI_WWAN));
                rfkill_set_hw_state(wwan_rfkill,