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usb: gadget: function: printer: Fix a memory leak for interface descriptor 

commit 2cc332e4ee upstream.

When printer driver is loaded, the printer_func_bind function is called, in
this function, the interface descriptor be allocated memory, if after that,
the error occurred, the interface descriptor memory need to be free.

Reviewed-by: Peter Chen <peter.chen@nxp.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Zqiang <qiang.zhang@windriver.com>
Link: https://lore.kernel.org/r/20201210020148.6691-1-qiang.zhang@windriver.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Zqiang 2020-12-10 10:01:48 +08:00 committed by Greg Kroah-Hartman
parent 692ab07264
commit b89a5f39c2
1 changed files with 1 additions and 0 deletions
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drivers/usb/gadget/function/f_printer.c
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@ -1126,6 +1126,7 @@ fail_tx_reqs:
printer_req_free(dev->in_ep, req);
}
usb_free_all_descriptors(f);
return ret;
}