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

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Free memory allocated for address0_mutex if allocation of bandwidth_mutex
failed.

Fixes: feb26ac31a ("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 dd5ca753fa
commit 1a744d2eb7
1 changed files with 1 additions and 0 deletions
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drivers/usb/core/hcd.c
+1
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@@ -2520,6 +2520,7 @@ struct usb_hcd *__usb_create_hcd(const struct hc_driver *driver,
hcd->bandwidth_mutex = kmalloc(sizeof(*hcd->bandwidth_mutex),
GFP_KERNEL);
if (!hcd->bandwidth_mutex) {
kfree(hcd->address0_mutex);
kfree(hcd);
dev_dbg(dev, "hcd bandwidth mutex alloc failed\n");
return NULL;