hwmon: Check for ACPI resource conflicts

Check for ACPI resource conflicts in hwmon drivers. I've included
all Super-I/O and PCI drivers.

I've voluntarily left out:
* Vendor-specific drivers: if they conflicted on any system, this would
  pretty much mean that they conflict on all systems, and we would know
  by now.
* Legacy ISA drivers (lm78 and w83781d): they only support chips found
  on old designs were ACPI either wasn't supported or didn't deal with
  thermal management.
* Drivers accessing the I/O resources indirectly (e.g. through SMBus):
  the checks are already done where they belong, i.e. in the bus drivers.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: David Hubbard <david.c.hubbard@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/hwmon/pc87360.c b/drivers/hwmon/pc87360.c
index 5fbfa34c110e..fb052fea3744 100644
--- a/drivers/hwmon/pc87360.c
+++ b/drivers/hwmon/pc87360.c
@@ -43,6 +43,7 @@
 #include <linux/hwmon-vid.h>
 #include <linux/err.h>
 #include <linux/mutex.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 static u8 devid;
@@ -1627,6 +1628,11 @@ static int __init pc87360_device_add(unsigned short address)
                         continue;
                 res.start = extra_isa[i];
                 res.end = extra_isa[i] + PC87360_EXTENT - 1;
+
+                err = acpi_check_resource_conflict(&res);
+                if (err)
+                        goto exit_device_put;
+
                 err = platform_device_add_resources(pdev, &res, 1);
                 if (err) {
                         printk(KERN_ERR "pc87360: Device resource[%d] "