diff options
| author | Takashi Iwai <tiwai@suse.de> | 2014-06-25 02:03:07 +0200 |
|---|---|---|
| committer | Roland Scheidegger <sroland@vmware.com> | 2014-06-25 02:15:49 +0200 |
| commit | 6b8b17153ab27b2bc7221df974a5872805f528b1 (patch) | |
| tree | afc9708c29ae14325bdd8984c83f12397a31248b | |
| parent | 48f1143c64e46b3d11dc318d7825b6167a2b78e5 (diff) | |
llvmpipe: Fix zero-division in llvmpipe_texture_layout()
Fix the crash of "gnome-control-center info" invocation on QEMU where
zero height is passed at init.
(sroland: simplify logic by eliminating the div altogether, using 64bit mul.)
Fixes: https://bugzilla.novell.com/show_bug.cgi?id=879462
Cc: "10.2" <mesa-stable@lists.freedesktop.org>
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_texture.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_texture.c b/src/gallium/drivers/llvmpipe/lp_texture.c index f60118135d9..6df88d076fa 100644 --- a/src/gallium/drivers/llvmpipe/lp_texture.c +++ b/src/gallium/drivers/llvmpipe/lp_texture.c @@ -115,7 +115,7 @@ llvmpipe_texture_layout(struct llvmpipe_screen *screen, lpr->row_stride[level] = align(nblocksx * block_size, util_cpu_caps.cacheline); /* if row_stride * height > LP_MAX_TEXTURE_SIZE */ - if (lpr->row_stride[level] > LP_MAX_TEXTURE_SIZE / nblocksy) { + if ((uint64_t)lpr->row_stride[level] * nblocksy > LP_MAX_TEXTURE_SIZE) { /* image too large */ goto fail; } |