media: flexcop-usb: fix sanity check of bNumEndpoints

[ Upstream commit f62dc8f6bf82d1b307fc37d8d22cc79f67856c2f ]

Commit d725d20e81c2 ("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: d725d20e81c2 ("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>

diff --git a/drivers/media/usb/b2c2/flexcop-usb.c b/drivers/media/usb/b2c2/flexcop-usb.c
index 0b5c2f3a54ab4f8e964c803f9946ba2f9d5314c9..0354614351cbfc7237330eff6a8d44efaccab371 100644 (file)
--- a/drivers/media/usb/b2c2/flexcop-usb.c
+++ b/drivers/media/usb/b2c2/flexcop-usb.c
@@ -513,7 +513,7 @@ 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;