1 files changed, 25 insertions, 9 deletions

diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index c28e3aea1c3c..6252b9ddc01e 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -660,7 +660,12 @@ static int adpt_abort(struct scsi_cmnd * cmd)
         msg[2] = 0;
         msg[3]= 0; 
         msg[4] = (u32)cmd;
-        if( (rcode = adpt_i2o_post_wait(pHba, msg, sizeof(msg), FOREVER)) != 0){
+        if (pHba->host)
+                spin_lock_irq(pHba->host->host_lock);
+        rcode = adpt_i2o_post_wait(pHba, msg, sizeof(msg), FOREVER);
+        if (pHba->host)
+                spin_unlock_irq(pHba->host->host_lock);
+        if (rcode != 0) {
                 if(rcode == -EOPNOTSUPP ){
                         printk(KERN_INFO"%s: Abort cmd not supported\n",pHba->name);
                         return FAILED;
@@ -697,10 +702,15 @@ static int adpt_device_reset(struct scsi_cmnd* cmd)
         msg[2] = 0;
         msg[3] = 0;
 
+        if (pHba->host)
+                spin_lock_irq(pHba->host->host_lock);
         old_state = d->state;
         d->state |= DPTI_DEV_RESET;
-        if( (rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER)) ){
-                d->state = old_state;
+        rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER);
+        d->state = old_state;
+        if (pHba->host)
+                spin_unlock_irq(pHba->host->host_lock);
+        if (rcode != 0) {
                 if(rcode == -EOPNOTSUPP ){
                         printk(KERN_INFO"%s: Device reset not supported\n",pHba->name);
                         return FAILED;
@@ -708,7 +718,6 @@ static int adpt_device_reset(struct scsi_cmnd* cmd)
                 printk(KERN_INFO"%s: Device reset failed\n",pHba->name);
                 return FAILED;
         } else {
-                d->state = old_state;
                 printk(KERN_INFO"%s: Device reset successful\n",pHba->name);
                 return SUCCESS;
         }
@@ -721,6 +730,7 @@ static int adpt_bus_reset(struct scsi_cmnd* cmd)
 {
         adpt_hba* pHba;
         u32 msg[4];
+        u32 rcode;
 
         pHba = (adpt_hba*)cmd->device->host->hostdata[0];
         memset(msg, 0, sizeof(msg));
@@ -729,7 +739,12 @@ static int adpt_bus_reset(struct scsi_cmnd* cmd)
         msg[1] = (I2O_HBA_BUS_RESET<<24|HOST_TID<<12|pHba->channel[cmd->device->channel].tid);
         msg[2] = 0;
         msg[3] = 0;
-        if(adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER) ){
+        if (pHba->host)
+                spin_lock_irq(pHba->host->host_lock);
+        rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER);
+        if (pHba->host)
+                spin_unlock_irq(pHba->host->host_lock);
+        if (rcode != 0) {
                 printk(KERN_WARNING"%s: Bus reset failed.\n",pHba->name);
                 return FAILED;
         } else {
@@ -816,7 +831,7 @@ static int adpt_hba_reset(adpt_hba* pHba)
 static void adpt_i2o_sys_shutdown(void)
 {
         adpt_hba *pHba, *pNext;
-        struct adpt_i2o_post_wait_data *p1, *p2;
+        struct adpt_i2o_post_wait_data *p1, *old;
 
          printk(KERN_INFO"Shutting down Adaptec I2O controllers.\n");
          printk(KERN_INFO"   This could take a few minutes if there are many devices attached\n");
@@ -830,13 +845,14 @@ static void adpt_i2o_sys_shutdown(void)
         }
 
         /* Remove any timedout entries from the wait queue.  */
-        p2 = NULL;
 //      spin_lock_irqsave(&adpt_post_wait_lock, flags);
         /* Nothing should be outstanding at this point so just
          * free them 
          */
-        for(p1 = adpt_post_wait_queue; p1; p2 = p1, p1 = p2->next) {
-                kfree(p1);
+        for(p1 = adpt_post_wait_queue; p1;) {
+                old = p1;
+                p1 = p1->next;
+                kfree(old);
         }
 //      spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
         adpt_post_wait_queue = NULL;