Add error checking and return -ENOMEM if input_allocate_device() fail.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
 drivers/platform/x86/hp-wmi.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 51c07a0..c508e20 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -402,6 +402,8 @@ static int __init hp_wmi_input_setup(void)
 	int err;
 
 	hp_wmi_input_dev = input_allocate_device();
+	if (!hp_wmi_input_dev)
+		return -ENOMEM;
 
 	hp_wmi_input_dev->name = "HP WMI hotkeys";
 	hp_wmi_input_dev->phys = "wmi/input0";
-- 
1.5.4.3



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