[SCSI] Revert "[SCSI] aacraid: fib context lock for management ioctls"

This reverts commit a119ee8ee3045bf559d4cf02d72b112f3de2a15b.

Adaptec found this was causing system lockups.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
index 851a7e5..f8afa35 100644 (file)
--- a/drivers/scsi/aacraid/commctrl.c
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -243,7 +243,6 @@ static int next_getadapter_fib(struct aac_dev * dev, void __user *arg)
         *      Search the list of AdapterFibContext addresses on the adapter
         *      to be sure this is a valid address
         */
-       spin_lock_irqsave(&dev->fib_lock, flags);
        entry = dev->fib_list.next;
        fibctx = NULL;
 
@@ -252,25 +251,24 @@ static int next_getadapter_fib(struct aac_dev * dev, void __user *arg)
                /*
                 *      Extract the AdapterFibContext from the Input parameters.
                 */
-               if (fibctx->unique == f.fibctx) { /* We found a winner */
+               if (fibctx->unique == f.fibctx) {   /* We found a winner */
                        break;
                }
                entry = entry->next;
                fibctx = NULL;
        }
        if (!fibctx) {
-               spin_unlock_irqrestore(&dev->fib_lock, flags);
                dprintk ((KERN_INFO "Fib Context not found\n"));
                return -EINVAL;
        }
 
        if((fibctx->type != FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT) ||
                 (fibctx->size != sizeof(struct aac_fib_context))) {
-               spin_unlock_irqrestore(&dev->fib_lock, flags);
                dprintk ((KERN_INFO "Fib Context corrupt?\n"));
                return -EINVAL;
        }
        status = 0;
+       spin_lock_irqsave(&dev->fib_lock, flags);
        /*
         *      If there are no fibs to send back, then either wait or return
         *      -EAGAIN
@@ -328,9 +326,7 @@ return_fib:
 int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context * fibctx)
 {
        struct fib *fib;
-       unsigned long flags;
 
-       spin_lock_irqsave(&dev->fib_lock, flags);
        /*
         *      First free any FIBs that have not been consumed.
         */
@@ -353,7 +349,6 @@ int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context * fibctx)
         *      Remove the Context from the AdapterFibContext List
         */
        list_del(&fibctx->next);
-       spin_unlock_irqrestore(&dev->fib_lock, flags);
        /*
         *      Invalidate context
         */
@@ -419,8 +414,8 @@ static int close_getadapter_fib(struct aac_dev * dev, void __user *arg)
  *     @arg: ioctl arguments
  *
  *     This routine returns the driver version.
- *     Under Linux, there have been no version incompatibilities, so this is
- *     simple!
+ *      Under Linux, there have been no version incompatibilities, so this is
+ *      simple!
  */
 
 static int check_revision(struct aac_dev *dev, void __user *arg)
@@ -468,7 +463,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
        u32 data_dir;
        void __user *sg_user[32];
        void *sg_list[32];
-       u32 sg_indx = 0;
+       u32   sg_indx = 0;
        u32 byte_count = 0;
        u32 actual_fibsize64, actual_fibsize = 0;
        int i;
@@ -522,11 +517,11 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
        // Fix up srb for endian and force some values
 
        srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);       // Force this
-       srbcmd->channel  = cpu_to_le32(user_srbcmd->channel);
+       srbcmd->channel  = cpu_to_le32(user_srbcmd->channel);
        srbcmd->id       = cpu_to_le32(user_srbcmd->id);
-       srbcmd->lun      = cpu_to_le32(user_srbcmd->lun);
-       srbcmd->timeout  = cpu_to_le32(user_srbcmd->timeout);
-       srbcmd->flags    = cpu_to_le32(flags);
+       srbcmd->lun      = cpu_to_le32(user_srbcmd->lun);
+       srbcmd->timeout  = cpu_to_le32(user_srbcmd->timeout);
+       srbcmd->flags    = cpu_to_le32(flags);
        srbcmd->retry_limit = 0; // Obsolete parameter
        srbcmd->cdb_size = cpu_to_le32(user_srbcmd->cdb_size);
        memcpy(srbcmd->cdb, user_srbcmd->cdb, sizeof(srbcmd->cdb));
@@ -791,9 +786,9 @@ static int aac_get_pci_info(struct aac_dev* dev, void __user *arg)
        pci_info.bus = dev->pdev->bus->number;
        pci_info.slot = PCI_SLOT(dev->pdev->devfn);
 
-       if (copy_to_user(arg, &pci_info, sizeof(struct aac_pci_info))) {
-               dprintk((KERN_DEBUG "aacraid: Could not copy pci info\n"));
-               return -EFAULT;
+       if (copy_to_user(arg, &pci_info, sizeof(struct aac_pci_info))) {
+              dprintk((KERN_DEBUG "aacraid: Could not copy pci info\n"));
+              return -EFAULT;
        }
        return 0;
 }