gpio: dwapb: fix pointer to integer cast

The statements BUG_ON(ctx == 0) was implicitly casting a pointer
to an integer for comparison. Do this with a bool test instead
to get away from sparse warnings.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index 7feaf9d..b43cd84 100644 (file)
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -626,7 +626,7 @@ static int dwapb_gpio_suspend(struct device *dev)
                unsigned int idx = gpio->ports[i].idx;
                struct dwapb_context *ctx = gpio->ports[i].ctx;
 
-               BUG_ON(ctx == 0);
+               BUG_ON(!ctx);
 
                offset = GPIO_SWPORTA_DDR + idx * GPIO_SWPORT_DDR_SIZE;
                ctx->dir = dwapb_read(gpio, offset);
@@ -668,7 +668,7 @@ static int dwapb_gpio_resume(struct device *dev)
                unsigned int idx = gpio->ports[i].idx;
                struct dwapb_context *ctx = gpio->ports[i].ctx;
 
-               BUG_ON(ctx == 0);
+               BUG_ON(!ctx);
 
                offset = GPIO_SWPORTA_DR + idx * GPIO_SWPORT_DR_SIZE;
                dwapb_write(gpio, offset, ctx->data);