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vt: invoke notifier on screen size change

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commit 0c9b1965faddad7534b6974b5b36c4ad37998f8e upstream.

User space using poll() on /dev/vcs devices are not awaken when a
screen size change occurs. Let's fix that.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nicolas Pitre 2019-01-08 22:55:01 -05:00 committed by Greg Kroah-Hartman
parent 8781bfdf73
commit 6a923fc6fe
1 changed files with 1 additions and 0 deletions
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drivers/tty/vt/vt.c
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@ -958,6 +958,7 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
if (CON_IS_VISIBLE(vc))
update_screen(vc);
vt_event_post(VT_EVENT_RESIZE, vc->vc_num, vc->vc_num);
notify_update(vc);
return err;
}