diff options
| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2012-08-14 08:47:38 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-15 15:17:40 -0700 |
| commit | ec03ad85486e94f133a721a5d6fd3aaef1176c46 (patch) | |
| tree | af40b87754e23945c7b4235b6d9c1bc03b621984 /drivers/usb/host/ehci-platform.c | |
| parent | 47282502933e94a2e443fab36c412191fc3ed6ce (diff) | |
| download | linux-ec03ad85486e94f133a721a5d6fd3aaef1176c46.tar.gz linux-ec03ad85486e94f133a721a5d6fd3aaef1176c46.tar.bz2 linux-ec03ad85486e94f133a721a5d6fd3aaef1176c46.zip | |
drivers/usb/host/ehci-platform.c: fix error return code
Convert a possibly 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>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/ehci-platform.c')
| -rw-r--r-- | drivers/usb/host/ehci-platform.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index 91acdde8d21f..764e0100b6f4 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -128,8 +128,10 @@ static int __devinit ehci_platform_probe(struct platform_device *dev) } hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) + if (!hcd->regs) { + err = -ENOMEM; goto err_release_region; + } err = usb_add_hcd(hcd, irq, IRQF_SHARED); if (err) goto err_iounmap; |