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authorYang Yingliang <yangyingliang@huawei.com>2020-11-17 17:29:55 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-12-28 15:45:50 +0100
commitc91d3a6bcaa031f551ba29a496a8027b31289464 (patch)
treec10843c0857252c9aeb9949a5158b9c0aae9e340
parent5cc35c224a80aa5a5a539510ef049faf0d6ed181 (diff)
USB: gadget: legacy: fix return error code in acm_ms_bind()
If usb_otg_descriptor_alloc() failed, it need return ENOMEM. Fixes: 578aa8a2b12c ("usb: gadget: acm_ms: allocate and init otg descriptor by otg capabilities") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20201117092955.4102785-1-yangyingliang@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/gadget/legacy/acm_ms.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/gadget/legacy/acm_ms.c b/drivers/usb/gadget/legacy/acm_ms.c
index 59be2d8417c9..e8033e5f0c18 100644
--- a/drivers/usb/gadget/legacy/acm_ms.c
+++ b/drivers/usb/gadget/legacy/acm_ms.c
@@ -200,8 +200,10 @@ static int acm_ms_bind(struct usb_composite_dev *cdev)
struct usb_descriptor_header *usb_desc;
usb_desc = usb_otg_descriptor_alloc(gadget);
- if (!usb_desc)
+ if (!usb_desc) {
+ status = -ENOMEM;
goto fail_string_ids;
+ }
usb_otg_descriptor_init(gadget, usb_desc);
otg_desc[0] = usb_desc;
otg_desc[1] = NULL;