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Subject[PATCH 12/14] drivers/spi/spi-coldfire-qspi.c: fix error return code
Date
From: Julia Lawall <Julia.Lawall@lip6.fr>

Initialize return variable before exiting on an error path.

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: Julia Lawall <Julia.Lawall@lip6.fr>

---
drivers/spi/spi-coldfire-qspi.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-coldfire-qspi.c b/drivers/spi/spi-coldfire-qspi.c
index b2d4b9e..7889796 100644
--- a/drivers/spi/spi-coldfire-qspi.c
+++ b/drivers/spi/spi-coldfire-qspi.c
@@ -462,6 +462,7 @@ static int __devinit mcfqspi_probe(struct platform_device *pdev)
pdata = pdev->dev.platform_data;
if (!pdata) {
dev_dbg(&pdev->dev, "platform data is missing\n");
+ status = -EINVAL;
goto fail4;
}
master->bus_num = pdata->bus_num;


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