[patch 1/1] hvc_console: fix: hp->ws winsize check runs out-of-sync

[Hendrik Brueckner]

From: Hendrik Brueckner <brueckner@xxxxxxxxxxxxxxxxxx>

The test to check for a new winsize runs out-of-sync with the underlying
tty. After a tty has been released and initialized again, the winsize might
differ between the tty and the hp struct. 
The solution is to simply remove the check and always schedule the resize work.

Signed-off-by: Hendrik Brueckner <brueckner@xxxxxxxxxxxxxxxxxx>
Acked-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
---
 drivers/char/hvc_console.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -689,10 +689,8 @@ EXPORT_SYMBOL_GPL(hvc_poll);
  */
 void hvc_resize(struct hvc_struct *hp, struct winsize ws)
 {
-	if ((hp->ws.ws_row != ws.ws_row) || (hp->ws.ws_col != ws.ws_col)) {
-		hp->ws = ws;
-		schedule_work(&hp->tty_resize);
-	}
+	hp->ws = ws;
+	schedule_work(&hp->tty_resize);
 }
 
 /*

-- 
Hendrik Brueckner
D/3303 Linux on System z Development
Tel: +49 7031 16-1073
Fax: +49 7031 16-3456
eMail: brueckner@xxxxxxxxxxxxxxxxxx
IBM Deutschland Research & Development GmbH, Schoenaicher Str. 220, 71032 Boeblingen

IBM Deutschland Research & Development GmbH
Vorsitzender des Aufsichtsrats: Martin Jetter
Geschaeftsfuehrung: Erich Baier
Sitz der Gesellschaft: Boeblingen
Registergericht: Amtsgericht Stuttgart, HRB 243294

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