[tip:efi/core] efi: Use PTR_ERR_OR_ZERO()

[tip-bot for Vasyl Gomonovych]

Commit-ID:  50342b2e498777df237a40a23eebc02f0935e636
Gitweb:     https://git.kernel.org/tip/50342b2e498777df237a40a23eebc02f0935e636
Author:     Vasyl Gomonovych <gomonovych@xxxxxxxxx>
AuthorDate: Tue, 2 Jan 2018 18:10:40 +0000
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Wed, 3 Jan 2018 14:03:48 +0100

efi: Use PTR_ERR_OR_ZERO()

Fix ptr_ret.cocci warnings:

  drivers/firmware/efi/efi.c:610:8-14: WARNING: PTR_ERR_OR_ZERO can be used

Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Signed-off-by: Vasyl Gomonovych <gomonovych@xxxxxxxxx>
Signed-off-by: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
Cc: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Tyler Baicar <tbaicar@xxxxxxxxxxxxxx>
Cc: linux-efi@xxxxxxxxxxxxxxx
Link: http://lkml.kernel.org/r/20180102181042.19074-4-ard.biesheuvel@xxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 drivers/firmware/efi/efi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 557a478..8ce70c2 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -608,7 +608,7 @@ static int __init efi_load_efivars(void)
 		return 0;
 
 	pdev = platform_device_register_simple("efivars", 0, NULL, 0);
-	return IS_ERR(pdev) ? PTR_ERR(pdev) : 0;
+	return PTR_ERR_OR_ZERO(pdev);
 }
 device_initcall(efi_load_efivars);
 #endif