From a4b11649618ef5366ee553f4083449d6bee5d8ec Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Fri, 11 Sep 2009 06:22:09 +0000 Subject: [PATCH] drivers/net/phy: introduce missing kfree Error handling code following a kzalloc should free the allocated data. The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // @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) // Signed-off-by: Julia Lawall Signed-off-by: David S. Miller --- drivers/net/phy/mdio-gpio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c index 22cdd451fb82..250e10f2c35b 100644 --- a/drivers/net/phy/mdio-gpio.c +++ b/drivers/net/phy/mdio-gpio.c @@ -211,7 +211,7 @@ static int __devinit mdio_ofgpio_probe(struct of_device *ofdev, new_bus = mdio_gpio_bus_init(&ofdev->dev, pdata, pdata->mdc); if (!new_bus) - return -ENODEV; + goto out_free; ret = of_mdiobus_register(new_bus, ofdev->node); if (ret) -- 2.39.2