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authorJiri Slaby2021-09-14 11:11:22 +0200
committerGreg Kroah-Hartman2021-09-22 16:59:13 +0200
commit28f194da4a2c4d431552025a4386edaffab181bd (patch)
treeec7550ada72e4ab6a948f51dd6713e8f115d665a /Documentation/driver-api
parent7894193436b65f304ba790abe2532a7a3bbeb7c8 (diff)
tty: make tty_ldisc_ops::hangup return void
The documentation says that the return value of tty_ldisc_ops::hangup hook is ignored. And it really is, so there is no point for its return type to be int. Switch it to void and all the hooks too. Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Wolfgang Grandegger <wg@grandegger.com> Cc: Marc Kleine-Budde <mkl@pengutronix.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Mark Brown <broonie@kernel.org> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: Peter Ujfalusi <peter.ujfalusi@gmail.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20210914091134.17426-4-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/driver-api')
-rw-r--r--Documentation/driver-api/serial/tty.rst2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/driver-api/serial/tty.rst b/Documentation/driver-api/serial/tty.rst
index dd972caacf3e..4b709f392713 100644
--- a/Documentation/driver-api/serial/tty.rst
+++ b/Documentation/driver-api/serial/tty.rst
@@ -58,7 +58,7 @@ close() This is called on a terminal when the line
hangup() Called when the tty line is hung up.
The line discipline should cease I/O to the tty.
No further calls into the ldisc code will occur.
- The return value is ignored. Can sleep.
+ Can sleep.
read() (optional) A process requests reading data from
the line. Multiple read calls may occur in parallel