[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>

1 files changed, 12 insertions, 17 deletions

diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
index 851a7e599c50..f8afa358b6b6 100644
--- 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;
 }