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-rw-r--r--drivers/net/spider_net.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c
index 15b0bcaec467..653a91adacc7 100644
--- a/drivers/net/spider_net.c
+++ b/drivers/net/spider_net.c
@@ -803,8 +803,12 @@ spider_net_release_tx_chain(struct spider_net_card *card, int brutal)
unsigned long flags;
int status;
- while (chain->tail != chain->head) {
+ while (1) {
spin_lock_irqsave(&chain->lock, flags);
+ if (chain->tail == chain->head) {
+ spin_unlock_irqrestore(&chain->lock, flags);
+ return 0;
+ }
descr = chain->tail;
hwdescr = descr->hwdescr;