From aece389ea58ff507801ce260a84905bbe2ab7948 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Tue, 14 Aug 2012 08:47:37 +0200 Subject: [PATCH] drivers/usb/host/ohci-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/) // @@ 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; } // Signed-off-by: Julia Lawall Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ohci-platform.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c index 10d85b9d9e93..e24ec9f79164 100644 --- a/drivers/usb/host/ohci-platform.c +++ b/drivers/usb/host/ohci-platform.c @@ -130,8 +130,10 @@ static int __devinit ohci_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;