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usb: gadget: s3c-hsotg.c: fix error return code 

Convert a 0 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>
@@
identifier ret;
expression e,e1,e2,e3,e4,x;
@@

(
if (\(ret != 0\|ret < 0\) || ...) { ... return ...; }
|
ret = 0
)
... when != ret = e1
*x = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\|ioremap\|ioremap_nocache\|devm_ioremap\|devm_ioremap_nocache\)(...);
... when != x = e2
    when != ret = e3
*if (x == NULL || ...)
{
  ... when != ret = e4
*  return ret;
}
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Julia Lawall 2012-08-14 08:47:34 +02:00 committed by Felipe Balbi
parent 0416e494ce
commit c8e6507bde
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/gadget/s3c-hsotg.c
View File

@ -3599,6 +3599,7 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
if (hsotg->num_of_eps == 0) {
dev_err(dev, "wrong number of EPs (zero)\n");
ret = -EINVAL;
goto err_supplies;
}
@ -3606,6 +3607,7 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
GFP_KERNEL);
if (!eps) {
dev_err(dev, "cannot get memory\n");
ret = -ENOMEM;
goto err_supplies;
}
@ -3622,6 +3624,7 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
GFP_KERNEL);
if (!hsotg->ctrl_req) {
dev_err(dev, "failed to allocate ctrl req\n");
ret = -ENOMEM;
goto err_ep_mem;
}