| From | Jiri Slaby <> | Subject | [PATCH 3.12 047/127] tty: vt, fix bogus division in csi_J | Date | Fri, 25 Nov 2016 09:29:20 +0100 |
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3.12-stable review patch. If anyone has any objections, please let me know.
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commit 42acfc6615f47e465731c263bee0c799edb098f2 upstream.
In csi_J(3), the third parameter of scr_memsetw (vc_screenbuf_size) is divided by 2 inappropriatelly. But scr_memsetw expects size, not count, because it divides the size by 2 on its own before doing actual memset-by-words.
So remove the bogus division.
Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Petr Písař <ppisar@redhat.com> Fixes: f8df13e0a9 (tty: Clean console safely) Signed-off-by: Jiri Slaby <jslaby@suse.cz> --- drivers/tty/vt/vt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index 60ce423c6364..75c059c56a23 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -1169,7 +1169,7 @@ static void csi_J(struct vc_data *vc, int vpar) break; case 3: /* erase scroll-back buffer (and whole display) */ scr_memsetw(vc->vc_screenbuf, vc->vc_video_erase_char, - vc->vc_screenbuf_size >> 1); + vc->vc_screenbuf_size); set_origin(vc); if (CON_IS_VISIBLE(vc)) update_screen(vc); -- 2.10.2
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