At present there is no indication that an invalid GPIO is used except that
the GPIO status is not displayed. Make the error more explicit to avoid
confusion.

Signed-off-by: Simon Glass <s...@chromium.org>
---

Changes in v2: None

 common/cmd_gpio.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/common/cmd_gpio.c b/common/cmd_gpio.c
index bb0f63a..2b78b16 100644
--- a/common/cmd_gpio.c
+++ b/common/cmd_gpio.c
@@ -174,8 +174,10 @@ static int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, 
char * const argv[])
         * GPIO compatibility layer.
         */
        ret = gpio_lookup_name(str_gpio, NULL, NULL, &gpio);
-       if (ret)
+       if (ret) {
+               printf("GPIO: '%s' not found\n", str_gpio);
                return cmd_process_error(cmdtp, ret);
+       }
 #else
        /* turn the gpio name into a gpio number */
        gpio = name_to_gpio(str_gpio);
-- 
2.7.0.rc3.207.g0ac5344

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