[PATCH] drivers: gpio: Fix dev_read_addr error check

[Francois Berder]

dev_read_addr returns FDT_ADDR_T_NONE (-1) in case of error
and not 0.

Signed-off-by: Francois Berder <fber...@outlook.fr>
---
 drivers/gpio/gpio-fxl6408.c | 2 +-
 drivers/gpio/pca953x_gpio.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-fxl6408.c b/drivers/gpio/gpio-fxl6408.c
index c8d2dff5f7b..180799139b3 100644
--- a/drivers/gpio/gpio-fxl6408.c
+++ b/drivers/gpio/gpio-fxl6408.c
@@ -273,7 +273,7 @@ static int fxl6408_probe(struct udevice *dev)
        u32 val32;
 
        addr = dev_read_addr(dev);
-       if (addr == 0)
+       if (addr == FDT_ADDR_T_NONE)
                return -EINVAL;
 
        info->addr = addr;
diff --git a/drivers/gpio/pca953x_gpio.c b/drivers/gpio/pca953x_gpio.c
index 523ca8473a8..965a5fcf30b 100644
--- a/drivers/gpio/pca953x_gpio.c
+++ b/drivers/gpio/pca953x_gpio.c
@@ -312,7 +312,7 @@ static int pca953x_probe(struct udevice *dev)
        u8 val[MAX_BANK];
 
        addr = dev_read_addr(dev);
-       if (addr == 0)
+       if (addr == FDT_ADDR_T_NONE)
                return -ENODEV;
 
        info->addr = addr;
-- 
2.43.0