i8042: Adjust kbd_reset() to collect all failures

Rather than lots of 'return' statements, use goto to a single return.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

diff --git a/drivers/input/i8042.c b/drivers/input/i8042.c
index dbd4b00..4c887f4 100644 (file)
--- a/drivers/input/i8042.c
+++ b/drivers/input/i8042.c
@@ -485,30 +485,33 @@ static int kbd_reset(void)
 
        /* controller self test */
        if (kbd_cmd_read(CMD_SELF_TEST) != KBC_TEST_OK)
-               return -1;
+               goto err;
 
        /* keyboard reset */
        if (kbd_write(I8042_DATA_REG, CMD_RESET_KBD) ||
            kbd_read(I8042_DATA_REG) != KBD_ACK ||
            kbd_read(I8042_DATA_REG) != KBD_POR)
-               return -1;
+               goto err;
 
        /* set AT translation and disable irq */
        config = kbd_cmd_read(CMD_RD_CONFIG);
        if (config == -1)
-               return -1;
+               goto err;
 
        config |= CONFIG_AT_TRANS;
        config &= ~(CONFIG_KIRQ_EN | CONFIG_MIRQ_EN);
        if (kbd_cmd_write(CMD_WR_CONFIG, config))
-               return -1;
+               goto err;
 
        /* enable keyboard */
        if (kbd_write(I8042_CMD_REG, CMD_KBD_EN) ||
            !kbd_input_empty())
-               return -1;
+               goto err;
 
        return 0;
+err:
+       debug("%s: Keyboard failure\n", __func__);
+       return -1;
 }
 
 static int kbd_controller_present(void)