aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorJulia Lawall <julia@diku.dk>2009-11-21 12:52:17 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2009-12-11 11:55:27 -0800
commitb2b608090544ecd30a826c32958bca74fb717963 (patch)
tree9e7481a5b6ade7a1bdff4e2e72fc8b21e733a127
parent06e182911da95a304eaab71288a47bc5c799c4eb (diff)
USB: ehci-omap.c: introduce missing kfree
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@diku.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/usb/host/ehci-omap.c3
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;