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>

14 files changed, 72 insertions, 0 deletions

diff --git a/drivers/hwmon/dme1737.c b/drivers/hwmon/dme1737.c
index 27a5d397f9a..3df202a9ad7 100644
--- a/drivers/hwmon/dme1737.c
+++ b/drivers/hwmon/dme1737.c
@@ -34,6 +34,7 @@
 #include <linux/hwmon-vid.h>
 #include <linux/err.h>
 #include <linux/mutex.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 /* ISA device, if found */
@@ -2361,6 +2362,10 @@ static int __init dme1737_isa_device_add(unsigned short addr)
 	};
 	int err;
 
+	err = acpi_check_resource_conflict(&res);
+	if (err)
+		goto exit;
+
 	if (!(pdev = platform_device_alloc("dme1737", addr))) {
 		printk(KERN_ERR "dme1737: Failed to allocate device.\n");
 		err = -ENOMEM;
diff --git a/drivers/hwmon/f71805f.c b/drivers/hwmon/f71805f.c
index 7a14a2dbb75..89987657925 100644
--- a/drivers/hwmon/f71805f.c
+++ b/drivers/hwmon/f71805f.c
@@ -39,6 +39,7 @@
 #include <linux/mutex.h>
 #include <linux/sysfs.h>
 #include <linux/ioport.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 static unsigned short force_id;
@@ -1455,6 +1456,10 @@ static int __init f71805f_device_add(unsigned short address,
 	}
 
 	res.name = pdev->name;
+	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 DRVNAME ": Device resource addition failed "
diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
index d867b377d4e..609cafff86b 100644
--- a/drivers/hwmon/f71882fg.c
+++ b/drivers/hwmon/f71882fg.c
@@ -28,6 +28,7 @@
 #include <linux/err.h>
 #include <linux/mutex.h>
 #include <linux/io.h>
+#include <linux/acpi.h>
 
 #define DRVNAME "f71882fg"
 
@@ -1929,6 +1930,10 @@ static int __init f71882fg_device_add(unsigned short address,
 		return -ENOMEM;
 
 	res.name = f71882fg_pdev->name;
+	err = acpi_check_resource_conflict(&res);
+	if (err)
+		return err;
+
 	err = platform_device_add_resources(f71882fg_pdev, &res, 1);
 	if (err) {
 		printk(KERN_ERR DRVNAME ": Device resource addition failed\n");
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index 0e0d692f0c9..88e71f195ec 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -49,6 +49,7 @@
 #include <linux/sysfs.h>
 #include <linux/string.h>
 #include <linux/dmi.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 #define DRVNAME "it87"
@@ -1552,6 +1553,10 @@ static int __init it87_device_add(unsigned short address,
 	};
 	int err;
 
+	err = acpi_check_resource_conflict(&res);
+	if (err)
+		goto exit;
+
 	pdev = platform_device_alloc(DRVNAME, address);
 	if (!pdev) {
 		err = -ENOMEM;
diff --git a/drivers/hwmon/pc87360.c b/drivers/hwmon/pc87360.c
index 5fbfa34c110..fb052fea374 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] "
diff --git a/drivers/hwmon/pc87427.c b/drivers/hwmon/pc87427.c
index 7265f22ae5c..3a8a0f7a773 100644
--- a/drivers/hwmon/pc87427.c
+++ b/drivers/hwmon/pc87427.c
@@ -32,6 +32,7 @@
 #include <linux/mutex.h>
 #include <linux/sysfs.h>
 #include <linux/ioport.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 static unsigned short force_id;
@@ -524,6 +525,10 @@ static int __init pc87427_device_add(unsigned short address)
 	};
 	int err;
 
+	err = acpi_check_resource_conflict(&res);
+	if (err)
+		goto exit;
+
 	pdev = platform_device_alloc(DRVNAME, address);
 	if (!pdev) {
 		err = -ENOMEM;
diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c
index a276806f3d5..aa2e8318f16 100644
--- a/drivers/hwmon/sis5595.c
+++ b/drivers/hwmon/sis5595.c
@@ -62,6 +62,7 @@
 #include <linux/jiffies.h>
 #include <linux/mutex.h>
 #include <linux/sysfs.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 
@@ -727,6 +728,10 @@ static int __devinit sis5595_device_add(unsigned short address)
 	};
 	int err;
 
+	err = acpi_check_resource_conflict(&res);
+	if (err)
+		goto exit;
+
 	pdev = platform_device_alloc("sis5595", address);
 	if (!pdev) {
 		err = -ENOMEM;
diff --git a/drivers/hwmon/smsc47b397.c b/drivers/hwmon/smsc47b397.c
index eb03544c731..6f6d52b4fb6 100644
--- a/drivers/hwmon/smsc47b397.c
+++ b/drivers/hwmon/smsc47b397.c
@@ -36,6 +36,7 @@
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/mutex.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 static unsigned short force_id;
@@ -303,6 +304,10 @@ static int __init smsc47b397_device_add(unsigned short address)
 	};
 	int err;
 
+	err = acpi_check_resource_conflict(&res);
+	if (err)
+		goto exit;
+
 	pdev = platform_device_alloc(DRVNAME, address);
 	if (!pdev) {
 		err = -ENOMEM;
diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c
index d1b49854873..a92dbb97ee9 100644
--- a/drivers/hwmon/smsc47m1.c
+++ b/drivers/hwmon/smsc47m1.c
@@ -37,6 +37,7 @@
 #include <linux/init.h>
 #include <linux/mutex.h>
 #include <linux/sysfs.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 static unsigned short force_id;
@@ -705,6 +706,10 @@ static int __init smsc47m1_device_add(unsigned short address,
 	};
 	int err;
 
+	err = acpi_check_resource_conflict(&res);
+	if (err)
+		goto exit;
+
 	pdev = platform_device_alloc(DRVNAME, address);
 	if (!pdev) {
 		err = -ENOMEM;
diff --git a/drivers/hwmon/via686a.c b/drivers/hwmon/via686a.c
index f1ee5e73196..a022aedcaac 100644
--- a/drivers/hwmon/via686a.c
+++ b/drivers/hwmon/via686a.c
@@ -41,6 +41,7 @@
 #include <linux/init.h>
 #include <linux/mutex.h>
 #include <linux/sysfs.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 
@@ -783,6 +784,10 @@ static int __devinit via686a_device_add(unsigned short address)
 	};
 	int err;
 
+	err = acpi_check_resource_conflict(&res);
+	if (err)
+		goto exit;
+
 	pdev = platform_device_alloc("via686a", address);
 	if (!pdev) {
 		err = -ENOMEM;
diff --git a/drivers/hwmon/vt1211.c b/drivers/hwmon/vt1211.c
index 12b43590fa5..b0ce3785228 100644
--- a/drivers/hwmon/vt1211.c
+++ b/drivers/hwmon/vt1211.c
@@ -32,6 +32,7 @@
 #include <linux/err.h>
 #include <linux/mutex.h>
 #include <linux/ioport.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 static int uch_config = -1;
@@ -1259,6 +1260,10 @@ static int __init vt1211_device_add(unsigned short address)
 	}
 
 	res.name = pdev->name;
+	err = acpi_check_resource_conflict(&res);
+	if (err)
+		goto EXIT;
+
 	err = platform_device_add_resources(pdev, &res, 1);
 	if (err) {
 		printk(KERN_ERR DRVNAME ": Device resource addition failed "
diff --git a/drivers/hwmon/vt8231.c b/drivers/hwmon/vt8231.c
index 5bc57275cae..9982b45fbb1 100644
--- a/drivers/hwmon/vt8231.c
+++ b/drivers/hwmon/vt8231.c
@@ -35,6 +35,7 @@
 #include <linux/hwmon-vid.h>
 #include <linux/err.h>
 #include <linux/mutex.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 static int force_addr;
@@ -894,6 +895,10 @@ static int __devinit vt8231_device_add(unsigned short address)
 	};
 	int err;
 
+	err = acpi_check_resource_conflict(&res);
+	if (err)
+		goto exit;
+
 	pdev = platform_device_alloc("vt8231", address);
 	if (!pdev) {
 		err = -ENOMEM;
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index 075164dd65a..a3a01dc35a3 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -48,6 +48,7 @@
 #include <linux/hwmon-vid.h>
 #include <linux/err.h>
 #include <linux/mutex.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 #include "lm75.h"
 
@@ -1544,6 +1545,11 @@ static int __init sensors_w83627ehf_init(void)
 	res.start = address + IOREGION_OFFSET;
 	res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
 	res.flags = IORESOURCE_IO;
+
+	err = acpi_check_resource_conflict(&res);
+	if (err)
+		goto exit;
+
 	err = platform_device_add_resources(pdev, &res, 1);
 	if (err) {
 		printk(KERN_ERR DRVNAME ": Device resource addition failed "
diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c
index b30e5796cb2..389150ba30d 100644
--- a/drivers/hwmon/w83627hf.c
+++ b/drivers/hwmon/w83627hf.c
@@ -50,6 +50,7 @@
 #include <linux/err.h>
 #include <linux/mutex.h>
 #include <linux/ioport.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 #include "lm75.h"
 
@@ -1793,6 +1794,10 @@ static int __init w83627hf_device_add(unsigned short address,
 	};
 	int err;
 
+	err = acpi_check_resource_conflict(&res);
+	if (err)
+		goto exit;
+
 	pdev = platform_device_alloc(DRVNAME, address);
 	if (!pdev) {
 		err = -ENOMEM;