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usb: core: fix potential memory leak in error path during hcd creation

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commit 1a744d2eb76aaafb997fda004ae3ae62a1538f85 upstream.

Free memory allocated for address0_mutex if allocation of bandwidth_mutex
failed.

Fixes: feb26ac31a2a ("usb: core: hub: hub_port_init lock controller instead of bus")

Signed-off-by: Anton Bondarenko <anton.bondarenko.sama@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Anton Bondarenko 2017-05-07 01:53:46 +02:00 • committed by Greg Kroah-Hartman
parent ec443ee0c2
commit e33e866d15
1 changed files with 1 additions and 0 deletions
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1
drivers/usb/core/hcd.c
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@ -2511,6 +2511,7 @@ struct usb_hcd *usb_create_shared_hcd(const struct hc_driver *driver,
hcd->bandwidth_mutex = kmalloc(sizeof(*hcd->bandwidth_mutex), hcd->bandwidth_mutex = kmalloc(sizeof(*hcd->bandwidth_mutex),
GFP_KERNEL); GFP_KERNEL);
if (!hcd->bandwidth_mutex) { if (!hcd->bandwidth_mutex) {
kfree(hcd->address0_mutex);
kfree(hcd); kfree(hcd);
dev_dbg(dev, "hcd bandwidth mutex alloc failed\n"); dev_dbg(dev, "hcd bandwidth mutex alloc failed\n");
return NULL; return NULL;