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media: flexcop-usb: fix sanity check of bNumEndpoints

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[ Upstream commit f62dc8f6bf ]

Commit d725d20e81 ("media: flexcop-usb: sanity checking of endpoint type
") adds a sanity check for endpoint[1], but fails to modify the sanity
check of bNumEndpoints.

Fix this by modifying the sanity check of bNumEndpoints to 2.

Link: https://lore.kernel.org/linux-media/20220602055027.849014-1-dzm91@hust.edu.cn
Fixes: d725d20e81 ("media: flexcop-usb: sanity checking of endpoint type")
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dongliang Mu 2022-06-02 06:50:24 +01:00 committed by Greg Kroah-Hartman
parent c11caf1339
commit a2d61b328e
1 changed files with 1 additions and 1 deletions
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2
drivers/media/usb/b2c2/flexcop-usb.c
View file

@ -514,7 +514,7 @@ static int flexcop_usb_init(struct flexcop_usb *fc_usb)
alt = fc_usb->uintf->cur_altsetting;
if (alt->desc.bNumEndpoints < 1)
if (alt->desc.bNumEndpoints < 2)
return -ENODEV;
if (!usb_endpoint_is_isoc_in(&alt->endpoint[0].desc))
return -ENODEV;