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authorJussi Kivilinna <jussi.kivilinna@mbnet.fi>2011-01-31 21:47:27 +0300
committerJohn W. Linville <linville@tuxdriver.com>2011-02-05 00:29:48 +0300
commit8b17f75ced1d45af9faed767f4cfafb13c0fe05e (patch)
treecac3f6a076ae0e6145d8e2969c39b6ac75b24fac /drivers/net/wireless/zd1211rw/zd_usb.c
parentd741900d404b3a34bf478673f76ee9f16dad3f90 (diff)
downloadlinux-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>
Diffstat (limited to 'drivers/net/wireless/zd1211rw/zd_usb.c')
-rw-r--r--drivers/net/wireless/zd1211rw/zd_usb.c2
1 files changed, 2 insertions, 0 deletions
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;