Merge branch 'linus' into tmp.x86.mpparse.new

1 files changed, 12 insertions, 8 deletions

diff --git a/drivers/char/pcmcia/ipwireless/hardware.c b/drivers/char/pcmcia/ipwireless/hardware.c
index fa9d3c945f31..ba6340ae98af 100644
--- a/drivers/char/pcmcia/ipwireless/hardware.c
+++ b/drivers/char/pcmcia/ipwireless/hardware.c
@@ -251,10 +251,11 @@ struct ipw_hardware {
         int init_loops;
         struct timer_list setup_timer;
 
+        /* Flag if hw is ready to send next packet */
         int tx_ready;
-        struct list_head tx_queue[NL_NUM_OF_PRIORITIES];
-        /* True if any packets are queued for transmission */
+        /* Count of pending packets to be sent */
         int tx_queued;
+        struct list_head tx_queue[NL_NUM_OF_PRIORITIES];
 
         int rx_bytes_queued;
         struct list_head rx_queue;
@@ -404,6 +405,8 @@ static int do_send_fragment(struct ipw_hardware *hw, const unsigned char *data,
 
         spin_lock_irqsave(&hw->spinlock, flags);
 
+        hw->tx_ready = 0;
+
         if (hw->hw_version == HW_VERSION_1) {
                 outw((unsigned short) length, hw->base_port + IODWR);
 
@@ -492,6 +495,7 @@ static int do_send_packet(struct ipw_hardware *hw, struct ipw_tx_packet *packet)
 
                 spin_lock_irqsave(&hw->spinlock, flags);
                 list_add(&packet->queue, &hw->tx_queue[0]);
+                hw->tx_queued++;
                 spin_unlock_irqrestore(&hw->spinlock, flags);
         } else {
                 if (packet->packet_callback)
@@ -949,12 +953,10 @@ static int send_pending_packet(struct ipw_hardware *hw, int priority_limit)
         unsigned long flags;
 
         spin_lock_irqsave(&hw->spinlock, flags);
-        if (hw->tx_queued && hw->tx_ready != 0) {
+        if (hw->tx_queued && hw->tx_ready) {
                 int priority;
                 struct ipw_tx_packet *packet = NULL;
 
-                hw->tx_ready--;
-
                 /* Pick a packet */
                 for (priority = 0; priority < priority_limit; priority++) {
                         if (!list_empty(&hw->tx_queue[priority])) {
@@ -963,6 +965,7 @@ static int send_pending_packet(struct ipw_hardware *hw, int priority_limit)
                                                 struct ipw_tx_packet,
                                                 queue);
 
+                                hw->tx_queued--;
                                 list_del(&packet->queue);
 
                                 break;
@@ -973,6 +976,7 @@ static int send_pending_packet(struct ipw_hardware *hw, int priority_limit)
                         spin_unlock_irqrestore(&hw->spinlock, flags);
                         return 0;
                 }
+
                 spin_unlock_irqrestore(&hw->spinlock, flags);
 
                 /* Send */
@@ -1063,7 +1067,7 @@ static irqreturn_t ipwireless_handle_v1_interrupt(int irq,
                 if (irqn & IR_TXINTR) {
                         ack |= IR_TXINTR;
                         spin_lock_irqsave(&hw->spinlock, flags);
-                        hw->tx_ready++;
+                        hw->tx_ready = 1;
                         spin_unlock_irqrestore(&hw->spinlock, flags);
                 }
                 /* Received data */
@@ -1170,7 +1174,7 @@ static irqreturn_t ipwireless_handle_v2_v3_interrupt(int irq,
         if (memrxdone & MEMRX_RX_DONE) {
                 writew(0, &hw->memory_info_regs->memreg_rx_done);
                 spin_lock_irqsave(&hw->spinlock, flags);
-                hw->tx_ready++;
+                hw->tx_ready = 1;
                 spin_unlock_irqrestore(&hw->spinlock, flags);
                 tx = 1;
         }
@@ -1234,7 +1238,7 @@ static void send_packet(struct ipw_hardware *hw, int priority,
 
         spin_lock_irqsave(&hw->spinlock, flags);
         list_add_tail(&packet->queue, &hw->tx_queue[priority]);
-        hw->tx_queued = 1;
+        hw->tx_queued++;
         spin_unlock_irqrestore(&hw->spinlock, flags);
 
         flush_packets_to_hw(hw);