[tip:efi/core] efi/efivar_ssdt_load: Don't return success on allocation failure

[tip-bot for Dan Carpenter <tipbot@zytor.com>]

Commit-ID:  a75dcb5848359f488c32c0aef8711d9bd37a77b8
Gitweb:     http://git.kernel.org/tip/a75dcb5848359f488c32c0aef8711d9bd37a77b8
Author:     Dan Carpenter <dan.carpenter@oracle.com>
AuthorDate: Tue, 18 Oct 2016 15:33:18 +0100
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Tue, 18 Oct 2016 17:11:20 +0200

efi/efivar_ssdt_load: Don't return success on allocation failure

We should return -ENOMEM here, instead of success.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Fixes: 475fb4e8b2f4 ("efi / ACPI: load SSTDs from EFI variables")
Link: http://lkml.kernel.org/r/20161018143318.15673-9-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 drivers/firmware/efi/efi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

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) {