[SPARC64]: Implement atomic backoff.

[linux-2.6-omap-h63xx.git] / drivers / scsi / imm.c

diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c
index 2d95ac9c32c1576e1a6ea01c562fac839330dac6..74cdc1f0a78f976bbf2d64397566430caba7ca32 100644 (file)
--- a/drivers/scsi/imm.c
+++ b/drivers/scsi/imm.c
@@ -36,7 +36,7 @@ typedef struct {
        int base_hi;            /* Hi Base address for ECP-ISA chipset */
        int mode;               /* Transfer mode                */
        struct scsi_cmnd *cur_cmd;      /* Current queued command       */
-       struct work_struct imm_tq;      /* Polling interrupt stuff       */
+       struct delayed_work imm_tq;     /* Polling interrupt stuff       */
        unsigned long jstart;   /* Jiffies at start             */
        unsigned failed:1;      /* Failure flag                 */
        unsigned dp:1;          /* Data phase present           */
@@ -733,19 +733,14 @@ static int imm_completion(struct scsi_cmnd *cmd)
  * the scheduler's task queue to generate a stream of call-backs and
  * complete the request when the drive is ready.
  */
-static void imm_interrupt(void *data)
+static void imm_interrupt(struct work_struct *work)
 {
-       imm_struct *dev = (imm_struct *) data;
+       imm_struct *dev = container_of(work, imm_struct, imm_tq.work);
        struct scsi_cmnd *cmd = dev->cur_cmd;
        struct Scsi_Host *host = cmd->device->host;
        unsigned long flags;
 
-       if (!cmd) {
-               printk("IMM: bug in imm_interrupt\n");
-               return;
-       }
        if (imm_engine(dev, cmd)) {
-               INIT_WORK(&dev->imm_tq, imm_interrupt, (void *) dev);
                schedule_delayed_work(&dev->imm_tq, 1);
                return;
        }
@@ -953,8 +948,7 @@ static int imm_queuecommand(struct scsi_cmnd *cmd,
        cmd->result = DID_ERROR << 16;  /* default return code */
        cmd->SCp.phase = 0;     /* bus free */
 
-       INIT_WORK(&dev->imm_tq, imm_interrupt, dev);
-       schedule_work(&dev->imm_tq);
+       schedule_delayed_work(&dev->imm_tq, 0);
 
        imm_pb_claim(dev);
 
@@ -1153,7 +1147,7 @@ static int __imm_attach(struct parport *pb)
 {
        struct Scsi_Host *host;
        imm_struct *dev;
-       DECLARE_WAIT_QUEUE_HEAD(waiting);
+       DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waiting);
        DEFINE_WAIT(wait);
        int ports;
        int modes, ppb;
@@ -1161,11 +1155,10 @@ static int __imm_attach(struct parport *pb)
 
        init_waitqueue_head(&waiting);
 
-       dev = kmalloc(sizeof(imm_struct), GFP_KERNEL);
+       dev = kzalloc(sizeof(imm_struct), GFP_KERNEL);
        if (!dev)
                return -ENOMEM;
 
-       memset(dev, 0, sizeof(imm_struct));
 
        dev->base = -1;
        dev->mode = IMM_AUTODETECT;
@@ -1225,7 +1218,7 @@ static int __imm_attach(struct parport *pb)
        else
                ports = 8;
 
-       INIT_WORK(&dev->imm_tq, imm_interrupt, dev);
+       INIT_DELAYED_WORK(&dev->imm_tq, imm_interrupt);
 
        err = -ENOMEM;
        host = scsi_host_alloc(&imm_template, sizeof(imm_struct *));