From: Julia Lawall <julia@xxxxxxx> Error handling code following a kzalloc should free the allocated data. The semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@xxxxxxx> --- drivers/usb/host/ehci-omap.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index 7ba8df3..12f1ad2 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -558,7 +558,7 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) omap = kzalloc(sizeof(*omap), GFP_KERNEL); if (!omap) { ret = -ENOMEM; - goto err_create_hcd; + goto err_disabled; } hcd = usb_create_hcd(&ehci_omap_hc_driver, &pdev->dev, @@ -653,6 +653,7 @@ err_ioremap: usb_put_hcd(hcd); err_create_hcd: + kfree(omap); err_disabled: err_pdata: return ret; -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
