summaryrefslogtreecommitdiff
path: root/drivers/i2c/busses/i2c-ibm_iic.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/i2c/busses/i2c-ibm_iic.c')
-rw-r--r--drivers/i2c/busses/i2c-ibm_iic.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index 781a99c..1898e99 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -680,6 +680,12 @@ static int __devinit iic_probe(struct ocp_device *ocp){
dev->idx = ocp->def->index;
ocp_set_drvdata(ocp, dev);
+ if (!request_mem_region(ocp->def->paddr, sizeof(struct iic_regs),
+ "ibm_iic")) {
+ ret = -EBUSY;
+ goto fail1;
+ }
+
if (!(dev->vaddr = ioremap(ocp->def->paddr, sizeof(struct iic_regs)))){
printk(KERN_CRIT "ibm-iic%d: failed to ioremap device registers\n",
dev->idx);
@@ -750,6 +756,8 @@ fail:
iounmap(dev->vaddr);
fail2:
+ release_mem_region(ocp->def->paddr, sizeof(struct iic_regs));
+fail1:
ocp_set_drvdata(ocp, NULL);
kfree(dev);
return ret;
@@ -777,6 +785,7 @@ static void __devexit iic_remove(struct ocp_device *ocp)
free_irq(dev->irq, dev);
}
iounmap(dev->vaddr);
+ release_mem_region(ocp->def->paddr, sizeof(struct iic_regs));
kfree(dev);
}
}