diff options
Diffstat (limited to 'drivers/misc/ad525x_dpot.c')
| -rw-r--r-- | drivers/misc/ad525x_dpot.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/ad525x_dpot.c b/drivers/misc/ad525x_dpot.c index 6f164522b028..5d8f3f6a95f2 100644 --- a/drivers/misc/ad525x_dpot.c +++ b/drivers/misc/ad525x_dpot.c @@ -139,6 +139,9 @@ static s32 dpot_read_spi(struct dpot_data *dpot, u8 reg) value = dpot_read_r8d8(dpot, DPOT_AD5291_READ_RDAC << 2); + if (value < 0) + return value; + if (dpot->uid == DPOT_UID(AD5291_ID)) value = value >> 2; |