From: Johan Hovold johan@kernel.org
commit 7180495cb3d0e2a2860d282a468b4146c21da78f upstream.
If tty-device registration fails the driver copy of any Country Selection functional descriptor would end up being freed twice; first explicitly in the error path and then again in the tty-port destructor.
Drop the first erroneous free that was left when fixing a tty-port resource leak.
Fixes: cae2bc768d17 ("usb: cdc-acm: Decrement tty port's refcount if probe() fail") Cc: stable@vger.kernel.org # 4.19 Cc: Jaejoong Kim climbbb.kim@gmail.com Acked-by: Oliver Neukum oneukum@suse.com Signed-off-by: Johan Hovold johan@kernel.org Link: https://lore.kernel.org/r/20210322155318.9837-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/class/cdc-acm.c | 1 - 1 file changed, 1 deletion(-)
--- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1534,7 +1534,6 @@ alloc_fail6: &dev_attr_wCountryCodes); device_remove_file(&acm->control->dev, &dev_attr_iCountryCodeRelDate); - kfree(acm->country_codes); } device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities); alloc_fail5: