diff options
Diffstat (limited to 'drivers/hwmon/vt1211.c')
| -rw-r--r-- | drivers/hwmon/vt1211.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/hwmon/vt1211.c b/drivers/hwmon/vt1211.c index 89c23d6..9f3e332 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; } |
