platform/x86: dell-wmi: check for kmalloc() errors

This allocation won't fail in the current kernel because it's small but
not checking for kmalloc() failures introduces static checker warnings
so let's fix it.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>

diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index 39d2f451848332d8346201b9cc1cd08bb5e10427..fb25b20df316f39140a3af0f974e9f1fa30aabff 100644 (file)
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -639,6 +639,8 @@ static int dell_wmi_events_set_enabled(bool enable)
        int ret;
 
        buffer = kzalloc(sizeof(struct calling_interface_buffer), GFP_KERNEL);
+       if (!buffer)
+               return -ENOMEM;
        buffer->cmd_class = CLASS_INFO;
        buffer->cmd_select = SELECT_APP_REGISTRATION;
        buffer->input[0] = 0x10000;