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authorNicolas Pitre <nico@fluxnic.net>2010-10-01 00:10:44 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2010-10-22 10:20:06 -0700
commit432c9ed22aff641039ccd400cdabf983fabc285e (patch)
treed4f458dfad838e93442a5ebbb3486113c8f77631 /drivers/char
parent47725ac76f51328d467b1430dfd027aba8706a11 (diff)
vcs: invoke the vt update callback when /dev/vcs* is written to
A notifier chain is called whenever the vt code modifies a terminal content, except for one case which is when the modification comes through writes to /dev/vcs* devices. Let's add the missing notifier invocation at the end of vcs_write() for that case too. Signed-off-by: Nicolas Pitre <nicolas.pitre@canonical.com> Cc: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/vc_screen.c2
-rw-r--r--drivers/char/vt.c5
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/char/vc_screen.c b/drivers/char/vc_screen.c
index 6f7054e1a51..273ab44cc91 100644
--- a/drivers/char/vc_screen.c
+++ b/drivers/char/vc_screen.c
@@ -538,6 +538,8 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
}
*ppos += written;
ret = written;
+ if (written)
+ vcs_scr_updated(vc);
unlock_out:
release_console_sem();
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 281aada7b4a..a8ec48ed14d 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -4182,6 +4182,11 @@ void vcs_scr_writew(struct vc_data *vc, u16 val, u16 *org)
}
}
+void vcs_scr_updated(struct vc_data *vc)
+{
+ notify_update(vc);
+}
+
/*
* Visible symbols for modules
*/