* [PATCH] usb: gadget: legacy: fix error return code of multi_bind()
@ 2021-03-07 8:45 Jia-Ju Bai
0 siblings, 0 replies; only message in thread
From: Jia-Ju Bai @ 2021-03-07 8:45 UTC (permalink / raw)
To: balbi, gregkh; +Cc: linux-usb, linux-kernel, Jia-Ju Bai
When usb_otg_descriptor_alloc() returns NULL to usb_desc, no error
return code of multi_bind() is assigned.
To fix this bug, status is assigned with -ENOMEM in this case.
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
---
drivers/usb/gadget/legacy/multi.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/legacy/multi.c b/drivers/usb/gadget/legacy/multi.c
index ec9749845660..7734bf77b309 100644
--- a/drivers/usb/gadget/legacy/multi.c
+++ b/drivers/usb/gadget/legacy/multi.c
@@ -399,8 +399,10 @@ static int __ref multi_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;
--
2.17.1
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2021-03-07 8:47 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-03-07 8:45 [PATCH] usb: gadget: legacy: fix error return code of multi_bind() Jia-Ju Bai
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).