netdev - [PATCH][V2] VSOCK: remove unnecessary ternary operator on return value

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Message-Id: <20170329153355.17525-1-colin.king@canonical.com>
Date:   Wed, 29 Mar 2017 16:33:55 +0100
From:   Colin King <colin.king@...onical.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jorgen Hansen <jhansen@...are.com>,
        "Michael S . Tsirkin" <mst@...hat.com>,
        Adit Ranadive <aditr@...are.com>,
        George Zhang <georgezhang@...are.com>,
        Stefan Hajnoczi <stefanha@...hat.com>,
        Julia Lawall <julia.lawall@...6.fr>, netdev@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][V2] VSOCK: remove unnecessary ternary operator on return value

From: Colin Ian King <colin.king@...onical.com>

Rather than assign the positive errno values to ret and then
checking if it is positive and flip the sign, just return the
errno value.

Detected by CoverityScan, CID#986649 ("Logically Dead Code")

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 net/vmw_vsock/vmci_transport.c | 22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c
index 4be4fbbc0b50..10ae7823a19d 100644
--- a/net/vmw_vsock/vmci_transport.c
+++ b/net/vmw_vsock/vmci_transport.c
@@ -96,31 +96,23 @@ static int PROTOCOL_OVERRIDE = -1;
 
 static s32 vmci_transport_error_to_vsock_error(s32 vmci_error)
 {
-	int err;
-
 	switch (vmci_error) {
 	case VMCI_ERROR_NO_MEM:
-		err = ENOMEM;
-		break;
+		return -ENOMEM;
 	case VMCI_ERROR_DUPLICATE_ENTRY:
 	case VMCI_ERROR_ALREADY_EXISTS:
-		err = EADDRINUSE;
-		break;
+		return -EADDRINUSE;
 	case VMCI_ERROR_NO_ACCESS:
-		err = EPERM;
-		break;
+		return -EPERM;
 	case VMCI_ERROR_NO_RESOURCES:
-		err = ENOBUFS;
-		break;
+		return -ENOBUFS;
 	case VMCI_ERROR_INVALID_RESOURCE:
-		err = EHOSTUNREACH;
-		break;
+		return -EHOSTUNREACH;
 	case VMCI_ERROR_INVALID_ARGS:
 	default:
-		err = EINVAL;
+		break;
 	}
-
-	return err > 0 ? -err : err;
+	return -EINVAL;
 }
 
 static u32 vmci_transport_peer_rid(u32 peer_cid)
-- 
2.11.0