diff options
| -rw-r--r-- | drivers/hwmon/lm78.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c index ed7859f0e16a..2c96d8a548f7 100644 --- a/drivers/hwmon/lm78.c +++ b/drivers/hwmon/lm78.c @@ -655,7 +655,7 @@ static int __devinit lm78_isa_probe(struct platform_device *pdev) /* Reserve the ISA region */ res = platform_get_resource(pdev, IORESOURCE_IO, 0); - if (!request_region(res->start, LM78_EXTENT, "lm78")) { + if (!request_region(res->start + LM78_ADDR_REG_OFFSET, 2, "lm78")) { err = -EBUSY; goto exit; } @@ -699,7 +699,7 @@ static int __devinit lm78_isa_probe(struct platform_device *pdev) device_remove_file(&pdev->dev, &dev_attr_name); kfree(data); exit_release_region: - release_region(res->start, LM78_EXTENT); + release_region(res->start + LM78_ADDR_REG_OFFSET, 2); exit: return err; } @@ -711,7 +711,7 @@ static int __devexit lm78_isa_remove(struct platform_device *pdev) hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&pdev->dev.kobj, &lm78_group); device_remove_file(&pdev->dev, &dev_attr_name); - release_region(data->client.addr, LM78_EXTENT); + release_region(data->client.addr + LM78_ADDR_REG_OFFSET, 2); kfree(data); return 0; @@ -837,8 +837,17 @@ static int __init lm78_isa_found(unsigned short address) { int val, save, found = 0; - if (!request_region(address, LM78_EXTENT, "lm78")) + /* We have to request the region in two parts because some + boards declare base+4 to base+7 as a PNP device */ + if (!request_region(address, 4, "lm78")) { + pr_debug("lm78: Failed to request low part of region\n"); return 0; + } + if (!request_region(address + 4, 4, "lm78")) { + pr_debug("lm78: Failed to request high part of region\n"); + release_region(address, 4); + return 0; + } #define REALLY_SLOW_IO /* We need the timeouts for at least some LM78-like @@ -901,7 +910,8 @@ static int __init lm78_isa_found(unsigned short address) val & 0x80 ? "LM79" : "LM78", (int)address); release: - release_region(address, LM78_EXTENT); + release_region(address + 4, 4); + release_region(address, 4); return found; } |