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authorFrank Pan2010-05-26 09:37:43 +0200
committerGreg Kroah-Hartman2010-06-04 22:37:18 +0200
commit962400e8fd29981a7b166e463dd143b6ac6a3e76 (patch)
tree9606786cc3ebd557d24e3e36f487a0c241fb3d9b /drivers/char
parentaltera_uart: Simplify altera_uart_console_putc (diff)
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tty: fix a little bug in scrup, vt.c
The code uses vc->vc_cols instead of vc->vc_size_row by mistake, it will cause half of the region which is going to clear remain uncleared. The issue happens in background consoles, so it's hard to observe. Frank Pan Signed-off-by: Frank Pan <frankpzh@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/vt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 7cdb6ee569cd..1296c42ed5c6 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -304,7 +304,7 @@ static void scrup(struct vc_data *vc, unsigned int t, unsigned int b, int nr)
d = (unsigned short *)(vc->vc_origin + vc->vc_size_row * t);
s = (unsigned short *)(vc->vc_origin + vc->vc_size_row * (t + nr));
scr_memmovew(d, s, (b - t - nr) * vc->vc_size_row);
- scr_memsetw(d + (b - t - nr) * vc->vc_cols, vc->vc_video_erase_char,
+ scr_memsetw(d + (b - t - nr) * vc->vc_size_row, vc->vc_video_erase_char,
vc->vc_size_row * nr);
}