From: Ahmed S. Darwish <a.darwish@linutronix.de>
Date: Mon, 8 Feb 2021 18:16:14 +0000 (+0100)
Subject: vt_ioctl: Remove in_interrupt() check
X-Git-Url: https://repo.jachan.dev/J-linux.git/commitdiff_plain/151db8c08c90405c14384bbdc5acb136bc42dbf8

vt_ioctl: Remove in_interrupt() check

reset_vc() uses a "!in_interrupt()" conditional before resetting the
palettes, which is a blocking operation. Since commit
   8b6312f4dcc1e ("[PATCH] vt: refactor console SAK processing")

all calls are invoked from a workqueue process context, with the
blocking console lock always acquired.

Remove the "!in_interrupt()" check.

Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lore.kernel.org/r/20210208181615.381861-2-bigeasy@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index 4a4cbd4a5f37..89aeaf3c1bca 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -930,8 +930,7 @@ void reset_vc(struct vc_data *vc)
 	put_pid(vc->vt_pid);
 	vc->vt_pid = NULL;
 	vc->vt_newvt = -1;
-	if (!in_interrupt())    /* Via keyboard.c:SAK() - akpm */
-		reset_palette(vc);
+	reset_palette(vc);
 }
 
 void vc_SAK(struct work_struct *work)