[PATCH 4.9 23/37] usbip: Fix incorrect double assignment to udc->ud.tcp_rx

From: Greg Kroah-Hartman
Date: Mon Apr 26 2021 - 03:36:25 EST


From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

commit 9858af27e69247c5d04c3b093190a93ca365f33d upstream.

Currently udc->ud.tcp_rx is being assigned twice, the second assignment
is incorrect, it should be to udc->ud.tcp_tx instead of rx. Fix this.

Fixes: 46613c9dfa96 ("usbip: fix vudc usbip_sockfd_store races leading to gpf")
Acked-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Addresses-Coverity: ("Unused value")
Link: https://lore.kernel.org/r/20210311104445.7811-1-colin.king@xxxxxxxxxxxxx
Signed-off-by: Tom Seewald <tseewald@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/usbip/vudc_sysfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/usbip/vudc_sysfs.c
+++ b/drivers/usb/usbip/vudc_sysfs.c
@@ -187,7 +187,7 @@ static ssize_t store_sockfd(struct devic

udc->ud.tcp_socket = socket;
udc->ud.tcp_rx = tcp_rx;
- udc->ud.tcp_rx = tcp_tx;
+ udc->ud.tcp_tx = tcp_tx;
udc->ud.status = SDEV_ST_USED;

spin_unlock_irq(&udc->ud.lock);