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| author | Jiri Slaby <jslaby@suse.cz> | 2016-10-03 12:00:17 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-04-18 08:55:45 +0300 |
| commit | fd60b9007c0c5b6e7a03116398f4cb885f9b3a91 (patch) | |
| tree | e0ecd8aaaf67502c24513b053405a4a388835645 /drivers/tty | |
| parent | afef4db94424df50555407c7366421f39462f27a (diff) | |
| download | linux-fd60b9007c0c5b6e7a03116398f4cb885f9b3a91.tar.xz | |
tty: vt, fix bogus division in csi_J
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/vt/vt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index 1a049e4de937..a57f3761ab47 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); |