ide: print message on error in ide_find_port_slot()

* Add DRV_NAME define to ide-h8300.c.

* Fix ide-h8300.c, swarm.c and sgiioc4.c to set .name field in
  struct ide_port_info to DRV_NAME, then convert these host drivers
  to use ide_find_port_slot() instead of ide_find_port().

* Print message on error in ide_find_port_slot().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

6 files changed, 16 insertions, 22 deletions

diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c
index ff6a98afefb7..c445298f7eb8 100644
--- a/drivers/ide/h8300/ide-h8300.c
+++ b/drivers/ide/h8300/ide-h8300.c
@@ -8,6 +8,8 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 
+#define DRV_NAME "ide-h8300"
+
 #define bswap(d) \
 ({                                      \
         u16 r;                          \
@@ -196,11 +198,9 @@ static int __init h8300_ide_init(void)
 
         hw_setup(&hw);
 
-        hwif = ide_find_port();
-        if (hwif == NULL) {
-                printk(KERN_ERR "ide-h8300: IDE I/F register failed\n");
+        hwif = ide_find_port_slot(&h8300_port_info);
+        if (hwif == NULL)
                 return -ENOENT;
-        }
 
         index = hwif->index;
         ide_init_port_hw(hwif, &hw);
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index c5dc18849303..235ebdb29b28 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1490,6 +1490,9 @@ ide_hwif_t *ide_find_port_slot(const struct ide_port_info *d)
                 }
         }
 
+        printk(KERN_ERR "%s: no free slot for interface\n",
+                        d ? d->name : "ide");
+
         return NULL;
 
 out_found:
diff --git a/drivers/ide/mips/swarm.c b/drivers/ide/mips/swarm.c
index 57a0138d0db6..bae92acea343 100644
--- a/drivers/ide/mips/swarm.c
+++ b/drivers/ide/mips/swarm.c
@@ -62,6 +62,7 @@ static struct resource swarm_ide_resource = {
 static struct platform_device *swarm_ide_dev;
 
 static const struct ide_port_info swarm_port_info = {
+        .name                   = DRV_NAME,
         .host_flags             = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
 };
 
@@ -81,11 +82,9 @@ static int __devinit swarm_ide_probe(struct device *dev)
         if (!SIBYTE_HAVE_IDE)
                 return -ENODEV;
 
-        hwif = ide_find_port();
-        if (hwif == NULL) {
-                printk(KERN_ERR DRV_NAME ": no free slot for interface\n");
+        hwif = ide_find_port_slot(&swarm_port_info);
+        if (hwif == NULL)
                 return -ENOMEM;
-        }
 
         base = ioremap(A_IO_EXT_BASE, 0x800);
         offset = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_START_ADDR, IDE_CS));
diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c
index 71bff3131b96..789c66dfbde5 100644
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -558,12 +558,9 @@ static int scc_ide_setup_pci_device(struct pci_dev *dev,
         u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
         int i;
 
-        hwif = ide_find_port();
-        if (hwif == NULL) {
-                printk(KERN_ERR "%s: too many IDE interfaces, "
-                                "no room in table\n", SCC_PATA_NAME);
+        hwif = ide_find_port_slot(d);
+        if (hwif == NULL)
                 return -ENOMEM;
-        }
 
         memset(&hw, 0, sizeof(hw));
         for (i = 0; i <= 8; i++)
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index dd0d0f73ab16..be73acb2080d 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -568,6 +568,7 @@ static const struct ide_dma_ops sgiioc4_dma_ops = {
 };
 
 static const struct ide_port_info sgiioc4_port_info __devinitdata = {
+        .name                   = DRV_NAME,
         .chipset                = ide_pci,
         .init_dma               = ide_dma_sgiioc4,
         .port_ops               = &sgiioc4_port_ops,
@@ -587,12 +588,9 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
         hw_regs_t hw;
         struct ide_port_info d = sgiioc4_port_info;
 
-        hwif = ide_find_port();
-        if (hwif == NULL) {
-                printk(KERN_ERR "%s: too many IDE interfaces, no room in table\n",
-                                DRV_NAME);
+        hwif = ide_find_port_slot(&d);
+        if (hwif == NULL)
                 return -ENOMEM;
-        }
 
         /*  Get the CmdBlk and CtrlBlk Base Registers */
         bar0 = pci_resource_start(dev, 0);
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 166211f53f17..4321d20fe874 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -332,11 +332,8 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev,
         }
 
         hwif = ide_find_port_slot(d);
-        if (hwif == NULL) {
-                printk(KERN_ERR "%s: too many IDE interfaces, no room in "
-                                "table\n", d->name);
+        if (hwif == NULL)
                 return NULL;
-        }
 
         memset(&hw, 0, sizeof(hw));
         hw.irq = irq;