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path: root/drivers/misc/bmp085.c
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Diffstat (limited to 'drivers/misc/bmp085.c')
-rw-r--r--drivers/misc/bmp085.c19
1 files changed, 4 insertions, 15 deletions
diff --git a/drivers/misc/bmp085.c b/drivers/misc/bmp085.c
index b29a2be24591..76c3064629f1 100644
--- a/drivers/misc/bmp085.c
+++ b/drivers/misc/bmp085.c
@@ -87,7 +87,7 @@ struct bmp085_data {
u32 raw_temperature;
u32 raw_pressure;
unsigned char oversampling_setting;
- u32 last_temp_measurement;
+ unsigned long last_temp_measurement;
s32 b6; /* calculated temperature correction coefficient */
};
@@ -234,7 +234,8 @@ static s32 bmp085_get_pressure(struct bmp085_data *data, int *pressure)
int status;
/* alt least every second force an update of the ambient temperature */
- if (data->last_temp_measurement + 1*HZ < jiffies) {
+ if (data->last_temp_measurement == 0 ||
+ time_is_before_jiffies(data->last_temp_measurement + 1*HZ)) {
status = bmp085_get_temperature(data, NULL);
if (status != 0)
goto exit;
@@ -464,20 +465,8 @@ static struct i2c_driver bmp085_driver = {
.address_list = normal_i2c
};
-static int __init bmp085_init(void)
-{
- return i2c_add_driver(&bmp085_driver);
-}
-
-static void __exit bmp085_exit(void)
-{
- i2c_del_driver(&bmp085_driver);
-}
-
+module_i2c_driver(bmp085_driver);
MODULE_AUTHOR("Christoph Mair <christoph.mair@gmail.com");
MODULE_DESCRIPTION("BMP085 driver");
MODULE_LICENSE("GPL");
-
-module_init(bmp085_init);
-module_exit(bmp085_exit);