1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/hwmon/vt1211.c b/drivers/hwmon/vt1211.c
index 89c23d6add7b..9f3e332c5b7f 100644
--- a/drivers/hwmon/vt1211.c
+++ b/drivers/hwmon/vt1211.c
@@ -31,6 +31,7 @@
 #include <linux/hwmon-vid.h>
 #include <linux/err.h>
 #include <linux/mutex.h>
+#include <linux/ioport.h>
 #include <asm/io.h>
 
 static int uch_config = -1;
@@ -1130,6 +1131,12 @@ static int __devinit vt1211_probe(struct platform_device *pdev)
         }
 
         res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+        if (!request_region(res->start, res->end - res->start + 1, DRVNAME)) {
+                err = -EBUSY;
+                dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
+                        (unsigned long)res->start, (unsigned long)res->end);
+                goto EXIT_KFREE;
+        }
         data->addr = res->start;
         data->name = DRVNAME;
         mutex_init(&data->update_lock);
@@ -1197,6 +1204,8 @@ EXIT_DEV_REMOVE:
         dev_err(dev, "Sysfs interface creation failed (%d)\n", err);
 EXIT_DEV_REMOVE_SILENT:
         vt1211_remove_sysfs(pdev);
+        release_region(res->start, res->end - res->start + 1);
+EXIT_KFREE:
         platform_set_drvdata(pdev, NULL);
         kfree(data);
 EXIT:
@@ -1206,12 +1215,16 @@ EXIT:
 static int __devexit vt1211_remove(struct platform_device *pdev)
 {
         struct vt1211_data *data = platform_get_drvdata(pdev);
+        struct resource *res;
 
         hwmon_device_unregister(data->class_dev);
         vt1211_remove_sysfs(pdev);
         platform_set_drvdata(pdev, NULL);
         kfree(data);
 
+        res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+        release_region(res->start, res->end - res->start + 1);
+
         return 0;
 }