Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

[mirror_ubuntu-bionic-kernel.git] / drivers / iio / pressure / bmp280-core.c

diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
index 4d18826ac63c2eca6bde3c03e18600961a885c11..d82b788374b61ba617bc5a073e17d283e5e0cfc9 100644 (file)
--- a/drivers/iio/pressure/bmp280-core.c
+++ b/drivers/iio/pressure/bmp280-core.c
@@ -175,11 +175,12 @@ static u32 bmp280_compensate_humidity(struct bmp280_data *data,
        }
        H6 = sign_extend32(tmp, 7);
 
-       var = ((s32)data->t_fine) - 76800;
-       var = ((((adc_humidity << 14) - (H4 << 20) - (H5 * var)) + 16384) >> 15)
-               * (((((((var * H6) >> 10) * (((var * H3) >> 11) + 32768)) >> 10)
-               + 2097152) * H2 + 8192) >> 14);
-       var -= ((((var >> 15) * (var >> 15)) >> 7) * H1) >> 4;
+       var = ((s32)data->t_fine) - (s32)76800;
+       var = ((((adc_humidity << 14) - (H4 << 20) - (H5 * var))
+               + (s32)16384) >> 15) * (((((((var * H6) >> 10)
+               * (((var * (s32)H3) >> 11) + (s32)32768)) >> 10)
+               + (s32)2097152) * H2 + 8192) >> 14);
+       var -= ((((var >> 15) * (var >> 15)) >> 7) * (s32)H1) >> 4;
 
        return var >> 12;
 };