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>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index 39d2f4518483..fb25b20df316 100644
--- 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;