From: Christian Lamparter <chunkeey@googlemail.com>
Date: Fri, 23 Dec 2011 19:35:18 +0000 (+0100)
Subject: carl9170 firmware: double check if unlinked desc matches head desc
X-Git-Tag: 1.9.5~7
X-Git-Url: https://jxself.org/git/?p=carl9170fw.git;a=commitdiff_plain;h=d6ed9408251e62c85e9af7cac67dfdfd6afc3918

carl9170 firmware: double check if unlinked desc matches head desc

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
---

diff --git a/carlfw/src/wlan.c b/carlfw/src/wlan.c
index bae584f..a7c805b 100644
--- a/carlfw/src/wlan.c
+++ b/carlfw/src/wlan.c
@@ -408,7 +408,11 @@ static bool wlan_tx_status(struct dma_queue *queue,
 				 * be aware of this so the frames don't get lost.
 				 */
 
+#ifndef CONFIG_CARL9170FW_DEBUG
 				dma_unlink_head(queue);
+#else /* CONFIG_CARL9170FW_DEBUG */
+				BUG_ON(dma_unlink_head(queue) != desc);
+#endif /* CONFIG_CARL9170FW_DEBUG */
 				dma_put(&fw.wlan.tx_retry, desc);
 				return true;
 			}
@@ -418,7 +422,11 @@ static bool wlan_tx_status(struct dma_queue *queue,
 		}
 	}
 
+#ifndef CONFIG_CARL9170FW_DEBUG
 	dma_unlink_head(queue);
+#else /* CONFIG_CARL9170FW_DEBUG */
+	BUG_ON(dma_unlink_head(queue) != desc);
+#endif /* CONFIG_CARL9170FW_DEBUG */
 	if (txfail) {
 		/*
 		 * Issue the queue bump,