[patch] efi: fix an error code

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We should return -ENOMEM here, instead of success.

Fixes: 475fb4e8b2f4 ('efi / ACPI: load SSTDs from EFI variables')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 1ac199c..a4944e2 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -259,8 +259,10 @@ static __init int efivar_ssdt_load(void)
 		}
 
 		data = kmalloc(size, GFP_KERNEL);
-		if (!data)
+		if (!data) {
+			ret = -ENOMEM;
 			goto free_entry;
+		}
 
 		ret = efivar_entry_get(entry, NULL, &size, data);
 		if (ret) {
--
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