2020-10-14 14:20:19

by Zhang, Qiang

[permalink] [raw]
Subject: [PATCH] usb: gadget: function: printer: Fix usb function descriptors leak

From: Zqiang <[email protected]>

If an error occurs after call 'usb_assign_descriptors' func, the
'usb_free_all_descriptors' need to be call to release memory space
occupied by function descriptors.

Signed-off-by: Zqiang <[email protected]>
---
drivers/usb/gadget/function/f_printer.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/usb/gadget/function/f_printer.c b/drivers/usb/gadget/function/f_printer.c
index 64a4112068fc..2f1eb2e81d30 100644
--- a/drivers/usb/gadget/function/f_printer.c
+++ b/drivers/usb/gadget/function/f_printer.c
@@ -1162,6 +1162,7 @@ static int printer_func_bind(struct usb_configuration *c,
printer_req_free(dev->in_ep, req);
}

+ usb_free_all_descriptors(f);
return ret;

}
--
2.17.1