diff options
| author | Jose Ignacio Tornos Martinez <jtornosm@redhat.com> | 2022-10-03 12:10:16 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-10-22 14:22:25 +0300 |
| commit | 9b6447e04bc2a4d06f2ef74a583848c573a25dbc (patch) | |
| tree | f2236497a7aec10596acb58896446681693aac3f /drivers/usb/usbip | |
| parent | 61dd457c0188c0deef68c2b919c0a2defe5db388 (diff) | |
| download | linux-9b6447e04bc2a4d06f2ef74a583848c573a25dbc.tar.xz | |
USB: usbip: missing lock in stub down
Missing lock in sysfs operation when we want to close the connection in order
to check the status and send the down event in a safe way.
Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20221003091016.641900-1-jtornosm@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/usbip')
| -rw-r--r-- | drivers/usb/usbip/stub_dev.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/usbip/stub_dev.c b/drivers/usb/usbip/stub_dev.c index f92047d860f0..9c6954aad6c8 100644 --- a/drivers/usb/usbip/stub_dev.c +++ b/drivers/usb/usbip/stub_dev.c @@ -118,6 +118,8 @@ static ssize_t usbip_sockfd_store(struct device *dev, struct device_attribute *a } else { dev_info(dev, "stub down\n"); + mutex_lock(&sdev->ud.sysfs_lock); + spin_lock_irq(&sdev->ud.lock); if (sdev->ud.status != SDEV_ST_USED) goto err; |