diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2010-11-26 21:03:37 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2010-11-26 21:03:37 +0000 |
| commit | 52b6bdd89f9a2e3b62a1e18bb560e688a7351e23 (patch) | |
| tree | 58bd87f3bf7a5d5b11598b81c16cada1f32c64f1 /sys/arch/sparc64/dev | |
| parent | 8eebe8b819526be622a48a4e35b320836be03f8a (diff) | |
In gfxp_copyrect(), make sure that the - possibly negative - coordinate fields, which are supposed to be 16 bit values, are properly masked to avoid polluting
other fields.
From NetBSD; ok kettenis@
Diffstat (limited to 'sys/arch/sparc64/dev')
| -rw-r--r-- | sys/arch/sparc64/dev/gfxp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/arch/sparc64/dev/gfxp.c b/sys/arch/sparc64/dev/gfxp.c index b3b36741d02..efb59603e63 100644 --- a/sys/arch/sparc64/dev/gfxp.c +++ b/sys/arch/sparc64/dev/gfxp.c @@ -1,4 +1,4 @@ -/* $OpenBSD: gfxp.c,v 1.11 2009/09/05 14:09:35 miod Exp $ */ +/* $OpenBSD: gfxp.c,v 1.12 2010/11/26 21:03:36 miod Exp $ */ /* * Copyright (c) 2009 Mark Kettenis. @@ -645,7 +645,7 @@ gfxp_copyrect(struct gfxp_softc *sc, int sx, int sy, int dx, int dy, bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_CONFIG, PM2_CONFIG_FB_WRITE_EN | PM2_CONFIG_FB_READ_SRC_EN); bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_FB_SRC_DELTA, - PM2_COORDS(sx - dx, sy - dy)); + PM2_COORDS((sx - dx) & 0xffff, (sy - dy) & 0xffff)); bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_RECT_ORIG, PM2_COORDS(dx, dy)); bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_RECT_SIZE, |