Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux...

[linux-2.6-omap-h63xx.git] / drivers / scsi / a2091.c

diff --git a/drivers/scsi/a2091.c b/drivers/scsi/a2091.c
index 23f27c9c989501e3d078f6a8532240b24bafe97f..37dd47136fb1104c55e05478cfe1dcd99bc7c507 100644 (file)
--- a/drivers/scsi/a2091.c
+++ b/drivers/scsi/a2091.c
@@ -46,8 +46,7 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
     struct Scsi_Host *instance = cmd->device->host;
 
     /* don't allow DMA if the physical address is bad */
-    if (addr & A2091_XFER_MASK ||
-       (!dir_in && mm_end_of_chunk (addr, cmd->SCp.this_residual)))
+    if (addr & A2091_XFER_MASK)
     {
        HDATA(instance)->dma_bounce_len = (cmd->SCp.this_residual + 511)
            & ~0x1ff;
@@ -170,21 +169,30 @@ int __init a2091_detect(struct scsi_host_template *tpnt)
            continue;
 
        instance = scsi_register (tpnt, sizeof (struct WD33C93_hostdata));
-       if (instance == NULL) {
-           release_mem_region(address, 256);
-           continue;
-       }
+       if (instance == NULL)
+           goto release;
        instance->base = ZTWO_VADDR(address);
        instance->irq = IRQ_AMIGA_PORTS;
        instance->unique_id = z->slotaddr;
        DMA(instance)->DAWR = DAWR_A2091;
        regs.SASR = &(DMA(instance)->SASR);
        regs.SCMD = &(DMA(instance)->SCMD);
+       HDATA(instance)->no_sync = 0xff;
+       HDATA(instance)->fast = 0;
+       HDATA(instance)->dma_mode = CTRL_DMA;
        wd33c93_init(instance, regs, dma_setup, dma_stop, WD33C93_FS_8_10);
-       request_irq(IRQ_AMIGA_PORTS, a2091_intr, IRQF_SHARED, "A2091 SCSI",
-                   instance);
+       if (request_irq(IRQ_AMIGA_PORTS, a2091_intr, IRQF_SHARED, "A2091 SCSI",
+                       instance))
+           goto unregister;
        DMA(instance)->CNTR = CNTR_PDMD | CNTR_INTEN;
        num_a2091++;
+       continue;
+
+unregister:
+       scsi_unregister(instance);
+       wd33c93_release();
+release:
+       release_mem_region(address, 256);
     }
 
     return num_a2091;