linux-kernel - [PATCH 16/20] drivers/net/ethernet/renesas/sh

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Message-Id: <1349281090-10013-15-git-send-email-peter.senna@gmail.com>
Date:	Wed,  3 Oct 2012 18:18:05 +0200
From:	Peter Senna Tschudin <peter.senna@...il.com>
To:	davem@...emloft.net
Cc:	kernel-janitors@...r.kernel.org, yoshihiro.shimoda.uh@...esas.com,
	nobuhiro.iwamatsu.yj@...esas.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 16/20] drivers/net/ethernet/renesas/sh_eth.c: fix error return code

From: Peter Senna Tschudin <peter.senna@...il.com>

Convert a nonnegative error return code to a negative one, as returned
elsewhere in the function.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}
// </smpl>

Signed-off-by: Peter Senna Tschudin <peter.senna@...il.com>

---
 drivers/net/ethernet/renesas/sh_eth.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index bad8f2e..c8bfea0 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -2438,6 +2438,7 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 		rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 		if (!rtsu) {
 			dev_err(&pdev->dev, "Not found TSU resource\n");
+			ret = -ENODEV;
 			goto out_release;
 		}
 		mdp->tsu_addr = ioremap(rtsu->start,

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