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path: root/drivers/hwmon/ams/ams-pmu.c
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Diffstat (limited to 'drivers/hwmon/ams/ams-pmu.c')
-rw-r--r--drivers/hwmon/ams/ams-pmu.c18
1 files changed, 5 insertions, 13 deletions
diff --git a/drivers/hwmon/ams/ams-pmu.c b/drivers/hwmon/ams/ams-pmu.c
index 9463e97..fb18b3d 100644
--- a/drivers/hwmon/ams/ams-pmu.c
+++ b/drivers/hwmon/ams/ams-pmu.c
@@ -149,8 +149,6 @@ int __init ams_pmu_init(struct device_node *np)
const u32 *prop;
int result;
- mutex_lock(&ams_info.lock);
-
/* Set implementation stuff */
ams_info.of_node = np;
ams_info.exit = ams_pmu_exit;
@@ -161,10 +159,9 @@ int __init ams_pmu_init(struct device_node *np)
/* Get PMU command, should be 0x4e, but we can never know */
prop = of_get_property(ams_info.of_node, "reg", NULL);
- if (!prop) {
- result = -ENODEV;
- goto exit;
- }
+ if (!prop)
+ return -ENODEV;
+
ams_pmu_cmd = ((*prop) >> 8) & 0xff;
/* Disable interrupts */
@@ -175,7 +172,7 @@ int __init ams_pmu_init(struct device_node *np)
result = ams_sensor_attach();
if (result < 0)
- goto exit;
+ return result;
/* Set default values */
ams_pmu_set_register(AMS_FF_LOW_LIMIT, 0x15);
@@ -198,10 +195,5 @@ int __init ams_pmu_init(struct device_node *np)
printk(KERN_INFO "ams: Found PMU based motion sensor\n");
- result = 0;
-
-exit:
- mutex_unlock(&ams_info.lock);
-
- return result;
+ return 0;
}
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