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>

diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 1ac199c..a4944e2 100644 (file)
--- 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) {