diff options
| author | Jussi Kivilinna <jussi.kivilinna@mbnet.fi> | 2011-01-31 21:47:27 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-02-05 00:29:48 +0300 |
| commit | 8b17f75ced1d45af9faed767f4cfafb13c0fe05e (patch) | |
| tree | cac3f6a076ae0e6145d8e2969c39b6ac75b24fac | |
| parent | d741900d404b3a34bf478673f76ee9f16dad3f90 (diff) | |
| download | linux-8b17f75ced1d45af9faed767f4cfafb13c0fe05e.tar.xz | |
zd1211rw: add locking for mac->process_intr
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/zd1211rw/zd_mac.c | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/zd1211rw/zd_usb.c | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c index 6107304cb94c..8b3d779d80dc 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.c +++ b/drivers/net/wireless/zd1211rw/zd_mac.c @@ -911,9 +911,13 @@ static int zd_op_config(struct ieee80211_hw *hw, u32 changed) static void zd_process_intr(struct work_struct *work) { u16 int_status; + unsigned long flags; struct zd_mac *mac = container_of(work, struct zd_mac, process_intr); - int_status = le16_to_cpu(*(__le16 *)(mac->intr_buffer+4)); + spin_lock_irqsave(&mac->lock, flags); + int_status = le16_to_cpu(*(__le16 *)(mac->intr_buffer + 4)); + spin_unlock_irqrestore(&mac->lock, flags); + if (int_status & INT_CFG_NEXT_BCN) dev_dbg_f_limit(zd_mac_dev(mac), "INT_CFG_NEXT_BCN\n"); else diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c index c32a2472eb44..9493ab86a41e 100644 --- a/drivers/net/wireless/zd1211rw/zd_usb.c +++ b/drivers/net/wireless/zd1211rw/zd_usb.c @@ -377,8 +377,10 @@ static inline void handle_regs_int(struct urb *urb) int_num = le16_to_cpu(*(__le16 *)(urb->transfer_buffer+2)); if (int_num == CR_INTERRUPT) { struct zd_mac *mac = zd_hw_mac(zd_usb_to_hw(urb->context)); + spin_lock(&mac->lock); memcpy(&mac->intr_buffer, urb->transfer_buffer, USB_MAX_EP_INT_BUFFER); + spin_unlock(&mac->lock); schedule_work(&mac->process_intr); } else if (intr->read_regs_enabled) { intr->read_regs.length = len = urb->actual_length; |