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-rw-r--r--include/linux/i2o.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/i2o.h b/include/linux/i2o.h
index 9ba8067..5a9d8c5 100644
--- a/include/linux/i2o.h
+++ b/include/linux/i2o.h
@@ -1115,9 +1115,11 @@ static inline struct i2o_message *i2o_msg_get(struct i2o_controller *c)
return ERR_PTR(-ENOMEM);
mmsg->mfa = readl(c->in_port);
- if (mmsg->mfa == I2O_QUEUE_EMPTY) {
+ if (unlikely(mmsg->mfa >= c->in_queue.len)) {
mempool_free(mmsg, c->in_msg.mempool);
- return ERR_PTR(-EBUSY);
+ if(mmsg->mfa == I2O_QUEUE_EMPTY)
+ return ERR_PTR(-EBUSY);
+ return ERR_PTR(-EFAULT);
}
return &mmsg->msg;
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