diff options
| author | Avinash Patil <patila@marvell.com> | 2014-02-18 15:41:54 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-23 21:38:12 -0700 |
| commit | 036a9770c1ab0fe8fc6af256c002319935145f13 (patch) | |
| tree | 3ae4c6c341e83d25cbea348f70e4df610c71bd20 /drivers | |
| parent | bace752109d73fd3f5dc4d592224c6f686b9a4eb (diff) | |
| download | lwn-036a9770c1ab0fe8fc6af256c002319935145f13.tar.gz lwn-036a9770c1ab0fe8fc6af256c002319935145f13.zip | |
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 <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/mwifiex/wmm.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c index ae31e8df44d7..80f72f6b6d56 100644 --- a/drivers/net/wireless/mwifiex/wmm.c +++ b/drivers/net/wireless/mwifiex/wmm.c @@ -556,7 +556,8 @@ 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); } |