From eaea06c56ee6569bbd6864a6f767160a74c9c65d Mon Sep 17 00:00:00 2001 From: Michael Tokarev Date: Wed, 19 Sep 2012 17:41:26 +0400 Subject: [PATCH] qxl/update_area_io: cleanup invalid parameters handling This cleans up two additions of almost the same code in commits 511b13e2c9 and ccc2960d654. While at it, make error paths consistent (always use 'break' instead of 'return'). Signed-off-by: Michael Tokarev Cc: Dunrong Huang Cc: Alon Levy Signed-off-by: Gerd Hoffmann --- hw/qxl.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) diff --git a/hw/qxl.c b/hw/qxl.c index 1aac04b..6b9d5d0 100644 --- a/hw/qxl.c +++ b/hw/qxl.c @@ -1547,20 +1547,13 @@ async_common: if (d->ram->update_surface > d->ssd.num_surfaces) { qxl_set_guest_bug(d, "QXL_IO_UPDATE_AREA: invalid surface id %d\n", d->ram->update_surface); - return; + break; } - if (update.left >= update.right || update.top >= update.bottom) { + if (update.left >= update.right || update.top >= update.bottom || + update.left < 0 || update.top < 0) { qxl_set_guest_bug(d, "QXL_IO_UPDATE_AREA: invalid area (%ux%u)x(%ux%u)\n", update.left, update.top, update.right, update.bottom); - return; - } - - if (update.left < 0 || update.top < 0 || update.left >= update.right || - update.top >= update.bottom) { - qxl_set_guest_bug(d, "QXL_IO_UPDATE_AREA: " - "invalid area(%d,%d,%d,%d)\n", update.left, - update.right, update.top, update.bottom); break; } if (async == QXL_ASYNC) { -- 1.8.0.2