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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-26 17:36:32 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-26 17:36:32 +0200
commit5297a3e522ff77e01fd0e792acc5ff0517822708 (patch)
tree1d91f87ffed7e1f0b6e2a9e9e5515f053f4eea37
parent7d9f3d51cf351ac35b4004cc40c7fd885fb30c5c (diff)
ide-pmac: dynamically allocate struct pmac_ide_hwif instances (take 2)
* Dynamically allocate struct pmac_ide_hwif instances in pmac_ide_macio_attach() and pmac_ide_pci_attach(), then remove no longer needed pmac_ide[]. v2: * Build fix from Kamalesh Babulal. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
-rw-r--r--drivers/ide/ppc/pmac.c49
1 files changed, 33 insertions, 16 deletions
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index 88619b50d9e..2793e5fe137 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -79,8 +79,6 @@ typedef struct pmac_ide_hwif {
} pmac_ide_hwif_t;
-static pmac_ide_hwif_t pmac_ide[MAX_HWIFS];
-
enum {
controller_ohare, /* OHare based */
controller_heathrow, /* Heathrow/Paddington */
@@ -1094,29 +1092,34 @@ pmac_ide_macio_attach(struct macio_dev *mdev, const struct of_device_id *match)
int i, rc;
hw_regs_t hw;
+ pmif = kzalloc(sizeof(*pmif), GFP_KERNEL);
+ if (pmif == NULL)
+ return -ENOMEM;
+
i = 0;
- while (i < MAX_HWIFS && (ide_hwifs[i].io_ports[IDE_DATA_OFFSET] != 0
- || pmac_ide[i].node != NULL))
+ while (i < MAX_HWIFS && (ide_hwifs[i].io_ports[IDE_DATA_OFFSET] != 0))
++i;
if (i >= MAX_HWIFS) {
printk(KERN_ERR "ide-pmac: MacIO interface attach with no slot\n");
printk(KERN_ERR " %s\n", mdev->ofdev.node->full_name);
- return -ENODEV;
+ rc = -ENODEV;
+ goto out_free_pmif;
}
- pmif = &pmac_ide[i];
hwif = &ide_hwifs[i];
if (macio_resource_count(mdev) == 0) {
printk(KERN_WARNING "ide%d: no address for %s\n",
i, mdev->ofdev.node->full_name);
- return -ENXIO;
+ rc = -ENXIO;
+ goto out_free_pmif;
}
/* Request memory resource for IO ports */
if (macio_request_resource(mdev, 0, "ide-pmac (ports)")) {
printk(KERN_ERR "ide%d: can't request mmio resource !\n", i);
- return -EBUSY;
+ rc = -EBUSY;
+ goto out_free_pmif;
}
/* XXX This is bogus. Should be fixed in the registry by checking
@@ -1166,11 +1169,15 @@ pmac_ide_macio_attach(struct macio_dev *mdev, const struct of_device_id *match)
iounmap(pmif->dma_regs);
macio_release_resource(mdev, 1);
}
- memset(pmif, 0, sizeof(*pmif));
macio_release_resource(mdev, 0);
+ kfree(pmif);
}
return rc;
+
+out_free_pmif:
+ kfree(pmif);
+ return rc;
}
static int
@@ -1223,30 +1230,36 @@ pmac_ide_pci_attach(struct pci_dev *pdev, const struct pci_device_id *id)
printk(KERN_ERR "ide-pmac: cannot find MacIO node for Kauai ATA interface\n");
return -ENODEV;
}
+
+ pmif = kzalloc(sizeof(*pmif), GFP_KERNEL);
+ if (pmif == NULL)
+ return -ENOMEM;
+
i = 0;
- while (i < MAX_HWIFS && (ide_hwifs[i].io_ports[IDE_DATA_OFFSET] != 0
- || pmac_ide[i].node != NULL))
+ while (i < MAX_HWIFS && (ide_hwifs[i].io_ports[IDE_DATA_OFFSET] != 0))
++i;
if (i >= MAX_HWIFS) {
printk(KERN_ERR "ide-pmac: PCI interface attach with no slot\n");
printk(KERN_ERR " %s\n", np->full_name);
- return -ENODEV;
+ rc = -ENODEV;
+ goto out_free_pmif;
}
- pmif = &pmac_ide[i];
hwif = &ide_hwifs[i];
if (pci_enable_device(pdev)) {
printk(KERN_WARNING "ide%i: Can't enable PCI device for %s\n",
i, np->full_name);
- return -ENXIO;
+ rc = -ENXIO;
+ goto out_free_pmif;
}
pci_set_master(pdev);
if (pci_request_regions(pdev, "Kauai ATA")) {
printk(KERN_ERR "ide%d: Cannot obtain PCI resources for %s\n",
i, np->full_name);
- return -ENXIO;
+ rc = -ENXIO;
+ goto out_free_pmif;
}
hwif->dev = &pdev->dev;
@@ -1276,11 +1289,15 @@ pmac_ide_pci_attach(struct pci_dev *pdev, const struct pci_device_id *id)
/* The inteface is released to the common IDE layer */
pci_set_drvdata(pdev, NULL);
iounmap(base);
- memset(pmif, 0, sizeof(*pmif));
pci_release_regions(pdev);
+ kfree(pmif);
}
return rc;
+
+out_free_pmif:
+ kfree(pmif);
+ return rc;
}
static int