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From:   Vasyl Gomonovych <gomonovych@gmail.com>
To:     acme@redhat.com, joe@ovn.org, wangnan0@huawei.com, ast@fb.com,
        davem@davemloft.net, john.fastabend@gmail.com
Cc:     gomonovych@gmail.com, linux-kernel@vger.kernel.org
Subject: [PATCH] tools lib bpf: Use PTR_ERR_OR_ZERO()
Date:   Tue, 28 Nov 2017 00:11:43 +0100
Message-Id: <1511824303-15856-1-git-send-email-gomonovych@gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Fix ptr_ret.cocci warnings:
tools/lib/bpf/libbpf.c:1744:1-3: 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@gmail.com>
---
 tools/lib/bpf/libbpf.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 35f6dfcdc565..c0894ef65631 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -1741,9 +1741,7 @@ struct bpf_map *
 
 long libbpf_get_error(const void *ptr)
 {
-	if (IS_ERR(ptr))
-		return PTR_ERR(ptr);
-	return 0;
+	return PTR_ERR_OR_ZERO(ptr);
 }
 
 int bpf_prog_load(const char *file, enum bpf_prog_type type,
-- 
1.9.1


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