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authorJaejoong Kim <climbbb.kim@gmail.com>2018-06-21 11:45:05 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-06-25 16:58:26 +0300
commitcae2bc768d176bfbdad7035bbcc3cdc973eb7984 (patch)
tree09cd58c17e3575c3a4698271c0f9e403591cc050 /drivers/usb/host/Makefile
parent61ef4b90793b3c1905ed8cbec228ff63ecb1a5c5 (diff)
downloadlinux-cae2bc768d176bfbdad7035bbcc3cdc973eb7984.tar.xz
usb: cdc-acm: Decrement tty port's refcount if probe() fail
The cdc-acm driver does not have a refcount of itself, but uses a tty_port's refcount. That is, if the refcount of tty_port is '0', we can clean up the cdc-acm driver by calling the .destruct() callback function of struct tty_port_operations. The problem is the destruct() callback function is not called if the probe() fails, because tty_port's refcount is not zero. So, add tty_port_put() when probe() fails. Signed-off-by: Jaejoong Kim <climbbb.kim@gmail.com> Acked-by: Oliver Neukum <oneukum@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/Makefile')
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