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| author | Chen Gang <gang.chen@asianux.com> | 2012-12-27 15:51:31 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-15 23:00:44 -0800 |
| commit | b342dd512f7af0e0e14e29c3e1f863150cfc46ff (patch) | |
| tree | 46deb7479d463bb04f426c46b38f12b64060bb01 /drivers/tty/tty_ldisc.c | |
| parent | 074d35cebe96da07ac07f78118bc6a09e60350b5 (diff) | |
| download | linux-b342dd512f7af0e0e14e29c3e1f863150cfc46ff.tar.gz | |
drivers/tty/serial: extern function which for release resource, need check pointer, before free it
for extern function uart_remove_one_port:
need check pointer whether be NULL, before the main work.
just like what the other extern function uart_add_one_port has done.
uart_add_one_port and uart_remove_one_port are pair
information:
for the callers (such as drivers/tty/serial/jsm: jsm_tty.c, jsm_driver.c)
they realy assume that:
they still can call uart_remove_one_port, after uart_add_one_port failed
we (as an extern function), have to understand it (just like kfree).
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty_ldisc.c')
0 files changed, 0 insertions, 0 deletions