[PATCH -next] platform/x86: dell-laptop: fix error return code in dell_init()

[Wei Yongjun <weiyongjun1@xxxxxxxxxx>]

Fix to return error code -ENOMEM from the kzalloc() error handling
case instead of 0, as done elsewhere in this function.

Fixes: 549b4930f057 ("platform/x86: dell-smbios: Introduce dispatcher for SMM calls")
Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
---
 drivers/platform/x86/dell-laptop.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index c4903c5..0a8f359 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -2081,8 +2081,10 @@ static int __init dell_init(void)
 	}
 
 	buffer = kzalloc(sizeof(struct calling_interface_buffer), GFP_KERNEL);
-	if (!buffer)
+	if (!buffer) {
+		ret = -ENOMEM;
 		goto fail_buffer;
+	}
 
 	if (quirks && quirks->touchpad_led)
 		touchpad_led_init(&platform_device->dev);