sgiioc4: fix messages

Fix several issues with the log messages printed by ide_dma_sgiioc4() and
sgiioc4_ide_setup_pci_device():

- IOC4 registers are memory-mapped but the "BM-DMA at" format corresponds to
  I/O  mapped registers;

- "%p" format specifiers and type casts used to print non-pointer values;

- using KERN_INFO log level for the error message;

- 'hwif->name' printed as drive's name.

While at it, also:

- return more fitting -EBUSY if request_mem_region() fails;

- make the error message style consistent;

- fix indentation, put the printk() facility and message on the same line;

- use comparisions with NULL instead of ! operator..

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: jeremy@sgi.com
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 16 insertions, 23 deletions

diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index 12ad4ca4b037..84cd986810cf 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -339,23 +339,20 @@ ide_dma_sgiioc4(ide_hwif_t *hwif, const struct ide_port_info *d)
         if (dma_base == 0)
                 return -1;
 
-        printk(KERN_INFO "%s: BM-DMA at 0x%04lx-0x%04lx\n", hwif->name,
-               dma_base, dma_base + num_ports - 1);
+        printk(KERN_INFO "    %s: MMIO-DMA\n", hwif->name);
 
-        if (!request_mem_region(dma_base, num_ports, hwif->name)) {
-                printk(KERN_ERR
-                       "%s(%s) -- ERROR, Addresses 0x%p to 0x%p "
-                       "ALREADY in use\n",
-                       __func__, hwif->name, (void *) dma_base,
-                       (void *) dma_base + num_ports - 1);
+        if (request_mem_region(dma_base, num_ports, hwif->name) == NULL) {
+                printk(KERN_ERR "%s(%s) -- ERROR: addresses 0x%08lx to 0x%08lx "
+                       "already in use\n", __func__, hwif->name,
+                       dma_base, dma_base + num_ports - 1);
                 return -1;
         }
 
         virt_dma_base = ioremap(dma_base, num_ports);
         if (virt_dma_base == NULL) {
-                printk(KERN_ERR
-                       "%s(%s) -- ERROR, Unable to map addresses 0x%lx to 0x%lx\n",
-                       __func__, hwif->name, dma_base, dma_base + num_ports - 1);
+                printk(KERN_ERR "%s(%s) -- ERROR: unable to map addresses "
+                       "0x%lx to 0x%lx\n", __func__, hwif->name,
+                       dma_base, dma_base + num_ports - 1);
                 goto dma_remap_failure;
         }
         hwif->dma_base = (unsigned long) virt_dma_base;
@@ -378,11 +375,9 @@ ide_dma_sgiioc4(ide_hwif_t *hwif, const struct ide_port_info *d)
 
         pci_free_consistent(dev, IOC4_PRD_ENTRIES * IOC4_PRD_BYTES,
                             hwif->dmatable_cpu, hwif->dmatable_dma);
-        printk(KERN_INFO
-               "%s() -- Error! Unable to allocate DMA Maps for drive %s\n",
+        printk(KERN_ERR "%s(%s) -- ERROR: Unable to allocate DMA maps\n",
                __func__, hwif->name);
-        printk(KERN_INFO
-               "Changing from DMA to PIO mode for Drive %s\n", hwif->name);
+        printk(KERN_INFO "%s: changing from DMA to PIO mode", hwif->name);
 
 dma_pci_alloc_failure:
         iounmap(virt_dma_base);
@@ -618,14 +613,12 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
         irqport = (unsigned long) virt_base + IOC4_INTR_OFFSET;
 
         cmd_phys_base = bar0 + IOC4_CMD_OFFSET;
-        if (!request_mem_region(cmd_phys_base, IOC4_CMD_CTL_BLK_SIZE,
-            DRV_NAME)) {
-                printk(KERN_ERR
-                        "%s %s: -- ERROR, Addresses "
-                        "0x%p to 0x%p ALREADY in use\n",
-                       DRV_NAME, pci_name(dev), (void *)cmd_phys_base,
-                       (void *) cmd_phys_base + IOC4_CMD_CTL_BLK_SIZE);
-                return -ENOMEM;
+        if (request_mem_region(cmd_phys_base, IOC4_CMD_CTL_BLK_SIZE,
+                               DRV_NAME) == NULL) {
+                printk(KERN_ERR "%s %s -- ERROR: addresses 0x%08lx to 0x%08lx "
+                       "already in use\n", DRV_NAME, pci_name(dev),
+                       cmd_phys_base, cmd_phys_base + IOC4_CMD_CTL_BLK_SIZE);
+                return -EBUSY;
         }
 
         /* Initialize the IO registers */