hp-wmi: add return value checking for input_allocate_device()

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

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Thomas Renninger <trenn@suse.de>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 34b417848e29..c5f95d1e0315 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -527,6 +527,8 @@ 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";