linux-kernel - [PATCH 8/8] efi: efivar_ssdt_load: Don't return success on allocation failure

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Date:   Tue, 18 Oct 2016 15:33:18 +0100
From:   Matt Fleming <matt@...eblueprint.co.uk>
To:     Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        "H . Peter Anvin" <hpa@...or.com>
Cc:     Dan Carpenter <dan.carpenter@...cle.com>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        linux-kernel@...r.kernel.org, linux-efi@...r.kernel.org
Subject: [PATCH 8/8] efi: efivar_ssdt_load: Don't return success on allocation failure

From: Dan Carpenter <dan.carpenter@...cle.com>

We should return -ENOMEM here, instead of success.

Fixes: 475fb4e8b2f4 ("efi / ACPI: load SSTDs from EFI variables")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@...aro.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 1ac199cd75e7..a4944e22f294 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) {
-- 
2.10.0