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| author | Julia Lawall <julia@diku.dk> | 2009-11-21 12:52:17 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-11 20:55:27 +0100 |
| commit | b2b608090544ecd30a826c32958bca74fb717963 (patch) | |
| tree | 9e7481a5b6ade7a1bdff4e2e72fc8b21e733a127 /drivers/usb | |
| parent | USB: xhci-mem.c: introduce missing kfree (diff) | |
| download | linux-b2b608090544ecd30a826c32958bca74fb717963.tar.xz linux-b2b608090544ecd30a826c32958bca74fb717963.zip | |
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>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | 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 7ba8df3c6d78..12f1ad2fd0e8 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; |