Input: edt-ft5x06 - fix error handling for factory mode on non-M06

When attempting enter factory mode on firmware that does not support it,
we'd error out, but leave the device with interrupts disabled, and thus
touch not working. Fix it by moving the check before we disable
interrupts/allocate memory for debug buffers.

Fixes: fd335ab04b3f ("Input: edt-ft5x06 - add support for M09 firmware version")
Reviewed-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index c53a3d7..1e18ca0 100644 (file)
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -511,6 +511,12 @@ static int edt_ft5x06_factory_mode(struct edt_ft5x06_ts_data *tsdata)
        int ret;
        int error;
 
+       if (tsdata->version != EDT_M06) {
+               dev_err(&client->dev,
+                       "No factory mode support for non-M06 devices\n");
+               return -EINVAL;
+       }
+
        disable_irq(client->irq);
 
        if (!tsdata->raw_buffer) {
@@ -524,9 +530,6 @@ static int edt_ft5x06_factory_mode(struct edt_ft5x06_ts_data *tsdata)
        }
 
        /* mode register is 0x3c when in the work mode */
-       if (tsdata->version != EDT_M06)
-               goto m09_out;
-
        error = edt_ft5x06_register_write(tsdata, WORK_REGISTER_OPMODE, 0x03);
        if (error) {
                dev_err(&client->dev,
@@ -559,11 +562,6 @@ err_out:
        enable_irq(client->irq);
 
        return error;
-
-m09_out:
-       dev_err(&client->dev, "No factory mode support for M09/M12/GENERIC_FT\n");
-       return -EINVAL;
-
 }
 
 static int edt_ft5x06_work_mode(struct edt_ft5x06_ts_data *tsdata)