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-rw-r--r--src/gallium/drivers/radeon/r600_test_dma.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeon/r600_test_dma.c b/src/gallium/drivers/radeon/r600_test_dma.c
index c203b4d9a2..1e60f6affa 100644
--- a/src/gallium/drivers/radeon/r600_test_dma.c
+++ b/src/gallium/drivers/radeon/r600_test_dma.c
@@ -345,6 +345,9 @@ void r600_test_dma(struct r600_common_screen *rscreen)
dstx = rand() % (tdst.width0 - width + 1) & ~0x7;
dsty = rand() % (tdst.height0 - height + 1) & ~0x7;
} else {
+ /* just make sure that it doesn't divide by zero */
+ assert(max_width > 0 && max_height > 0);
+
width = (rand() % max_width) + 1;
height = (rand() % max_height) + 1;