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Subject[PATCH 6/7] host: ehci-w90x900: fix error return code
Date
From: Julia Lawall <Julia.Lawall@lip6.fr>

Return a negative error code on failure.

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

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

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
The patches in this series are independent of each other.

drivers/usb/host/ehci-w90x900.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c
index 93d9cd6..e42a29e 100644
--- a/drivers/usb/host/ehci-w90x900.c
+++ b/drivers/usb/host/ehci-w90x900.c
@@ -75,8 +75,10 @@ static int usb_w90x900_probe(const struct hc_driver *driver,
__raw_writel(val, ehci->regs+PHY1_CTR);

irq = platform_get_irq(pdev, 0);
- if (irq < 0)
+ if (irq < 0) {
+ retval = irq;
goto err2;
+ }

retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (retval != 0)


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