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| author | Jaejoong Kim <[email protected]> | 2018-06-21 08:45:05 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2018-06-25 13:58:26 +0000 |
| commit | cae2bc768d176bfbdad7035bbcc3cdc973eb7984 (patch) | |
| tree | 09cd58c17e3575c3a4698271c0f9e403591cc050 /drivers/usb/class/cdc-acm.h | |
| parent | USB: mon: use ktime_get_real_ts64 instead of getnstimeofday64 (diff) | |
| download | kernel-cae2bc768d176bfbdad7035bbcc3cdc973eb7984.tar.gz kernel-cae2bc768d176bfbdad7035bbcc3cdc973eb7984.zip | |
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 <[email protected]>
Acked-by: Oliver Neukum <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'drivers/usb/class/cdc-acm.h')
0 files changed, 0 insertions, 0 deletions