According to the RMI4 spec the maximum size of F12 control register 8 is
15 bytes. The current code incorrectly reports an error if control 8 is
greater then 14. Making sensors with a control register 8 with 15 bytes
unusable.
Signed-off-by: Andrew Duggan <aduggan@xxxxxxxxxxxxx>
Reported-by: Chris Healy <cphealy@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
drivers/input/rmi4/rmi_f12.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/input/rmi4/rmi_f12.c b/drivers/input/rmi4/rmi_f12.c
index c30fd86..9b0d9f7 100644
--- a/drivers/input/rmi4/rmi_f12.c
+++ b/drivers/input/rmi4/rmi_f12.c
@@ -68,7 +68,7 @@ static int rmi_f12_read_sensor_tuning(struct f12_data *f12)
struct rmi_device *rmi_dev = fn->rmi_dev;
int ret;
int offset;
- u8 buf[14];
+ u8 buf[15];
int pitch_x = 0;
int pitch_y = 0;
int clip_x_low = 0;
@@ -88,8 +88,9 @@ static int rmi_f12_read_sensor_tuning(struct f12_data *f12)
offset = rmi_register_desc_calc_reg_offset(&f12->control_reg_desc, 8);
- if (item->reg_size > 14) {
- dev_err(&fn->dev, "F12 control8 should be 14 bytes, not: %ld\n",
+ if (item->reg_size > 15) {
+ dev_err(&fn->dev,
+ "F12 control8 should be a maximum of 15 bytes, not: %ld\n",
item->reg_size);
return -ENODEV;
}
--
2.7.4
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