From db5eb608ac4a1f8982a4a5dd5c486008eec16655 Mon Sep 17 00:00:00 2001 From: Avinash Patil Date: Tue, 18 Feb 2014 15:41:54 -0800 Subject: [PATCH] mwifiex: clean pcie ring only when device is present commit 4f7ba432202c8330cc03ab959c6228d0de5dc4a3 upstream. Write io memory to clean PCIe buffer only when PCIe device is present else this results into crash because of invalid memory access. Signed-off-by: Avinash Patil Signed-off-by: Bing Zhao Signed-off-by: John W. Linville Signed-off-by: Jiri Slaby --- drivers/net/wireless/mwifiex/wmm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c index 95fa3599b407..35f881585962 100644 --- a/drivers/net/wireless/mwifiex/wmm.c +++ b/drivers/net/wireless/mwifiex/wmm.c @@ -559,7 +559,8 @@ mwifiex_clean_txrx(struct mwifiex_private *priv) mwifiex_wmm_delete_all_ralist(priv); memcpy(tos_to_tid, ac_to_tid, sizeof(tos_to_tid)); - if (priv->adapter->if_ops.clean_pcie_ring) + if (priv->adapter->if_ops.clean_pcie_ring && + !priv->adapter->surprise_removed) priv->adapter->if_ops.clean_pcie_ring(priv->adapter); spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags); } -- 2.34.1