staging: fbtft: Don't spam logs when probe is deferred

When requesting GPIO line the probe can be deferred.
In such case don't spam logs with an error message.
This can be achieved by switching to dev_err_probe().

Fixes: c440eee1a7a1 ("Staging: fbtft: Switch to the gpio descriptor interface")
Cc: Nishad Kamdar <nishadkamdar@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210503172114.27891-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index 67c3b1975a4de6a5e093ddffac9d92d725f22517..3723269890d5ff613470d0e5c067f42897600837 100644 (file)
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -75,20 +75,16 @@ static int fbtft_request_one_gpio(struct fbtft_par *par,
                                  struct gpio_desc **gpiop)
 {
        struct device *dev = par->info->device;
-       int ret = 0;
 
        *gpiop = devm_gpiod_get_index_optional(dev, name, index,
                                               GPIOD_OUT_LOW);
-       if (IS_ERR(*gpiop)) {
-               ret = PTR_ERR(*gpiop);
-               dev_err(dev,
-                       "Failed to request %s GPIO: %d\n", name, ret);
-               return ret;
-       }
+       if (IS_ERR(*gpiop))
+               return dev_err_probe(dev, PTR_ERR(*gpiop), "Failed to request %s GPIO\n", name);
+
        fbtft_par_dbg(DEBUG_REQUEST_GPIOS, par, "%s: '%s' GPIO\n",
                      __func__, name);
 
-       return ret;
+       return 0;
 }
 
 static int fbtft_request_gpios(struct fbtft_par *par)