gpio-uclass.c: Fix comparison of unsigned expression warning

We declare that gpio_base (which is the base for counting gpios, not an
address) is unsigned.  Therefore the comparison with >= 0 is always
true.  As the desire is to allow for this base number to be 0, we can
just drop this check.  Reported by clang-3.8.

Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/drivers/gpio/gpio-uclass.c b/drivers/gpio/gpio-uclass.c
index 9ab9df4ce7a6cd5afd1a78813c13560a40265a29..ba4804083daa6c7c6619eeda9215022d26fe0623 100644 (file)
--- a/drivers/gpio/gpio-uclass.c
+++ b/drivers/gpio/gpio-uclass.c
@@ -68,7 +68,7 @@ int dm_gpio_lookup_name(const char *name, struct gpio_desc *desc)
                if (numeric != -1) {
                        offset = numeric - uc_priv->gpio_base;
                        /* Allow GPIOs to be numbered from 0 */
-                       if (offset >= 0 && offset < uc_priv->gpio_count)
+                       if (offset < uc_priv->gpio_count)
                                break;
                }