diff --git a/drivers/hwtracing/coresight/coresight-etb10.c b/drivers/hwtracing/coresight/coresight-etb10.c
index 46eb9f88a29f02c57f0be0c97b09980d6564fe34..2a77d83130e693dc33c91a161724c34b417d8e58 100644
--- a/drivers/hwtracing/coresight/coresight-etb10.c
+++ b/drivers/hwtracing/coresight/coresight-etb10.c
@@ -457,7 +457,7 @@ static int etb_probe(struct amba_device *adev, const struct amba_id *id)
 	drvdata->buffer_depth = etb_get_buffer_depth(drvdata);
 	clk_disable_unprepare(drvdata->clk);
 
-	if (drvdata->buffer_depth < 0)
+	if (drvdata->buffer_depth & 0x80000000)
 		return -EINVAL;
 
 	drvdata->buf = devm_kzalloc(dev,