diff options
Diffstat (limited to 'drivers/hwmon/f71805f.c')
| -rw-r--r-- | drivers/hwmon/f71805f.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/hwmon/f71805f.c b/drivers/hwmon/f71805f.c index 7c297348712..cdbe309b8fc 100644 --- a/drivers/hwmon/f71805f.c +++ b/drivers/hwmon/f71805f.c @@ -35,6 +35,7 @@ #include <linux/err.h> #include <linux/mutex.h> #include <linux/sysfs.h> +#include <linux/ioport.h> #include <asm/io.h> static struct platform_device *pdev; @@ -1140,6 +1141,13 @@ static int __devinit f71805f_probe(struct platform_device *pdev) } res = platform_get_resource(pdev, IORESOURCE_IO, 0); + if (!request_region(res->start + ADDR_REG_OFFSET, 2, DRVNAME)) { + err = -EBUSY; + dev_err(&pdev->dev, "Failed to request region 0x%lx-0x%lx\n", + (unsigned long)(res->start + ADDR_REG_OFFSET), + (unsigned long)(res->start + ADDR_REG_OFFSET + 1)); + goto exit_free; + } data->addr = res->start; data->name = names[sio_data->kind]; mutex_init(&data->update_lock); @@ -1165,7 +1173,7 @@ static int __devinit f71805f_probe(struct platform_device *pdev) /* Register sysfs interface files */ if ((err = sysfs_create_group(&pdev->dev.kobj, &f71805f_group))) - goto exit_free; + goto exit_release_region; if (data->has_in & (1 << 4)) { /* in4 */ if ((err = sysfs_create_group(&pdev->dev.kobj, &f71805f_group_optin[0]))) @@ -1219,6 +1227,8 @@ exit_remove_files: for (i = 0; i < 4; i++) sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_optin[i]); sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_pwm_freq); +exit_release_region: + release_region(res->start + ADDR_REG_OFFSET, 2); exit_free: platform_set_drvdata(pdev, NULL); kfree(data); @@ -1229,6 +1239,7 @@ exit: static int __devexit f71805f_remove(struct platform_device *pdev) { struct f71805f_data *data = platform_get_drvdata(pdev); + struct resource *res; int i; platform_set_drvdata(pdev, NULL); @@ -1239,6 +1250,9 @@ static int __devexit f71805f_remove(struct platform_device *pdev) sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_pwm_freq); kfree(data); + res = platform_get_resource(pdev, IORESOURCE_IO, 0); + release_region(res->start + ADDR_REG_OFFSET, 2); + return 0; } |