[media] smiapp: Return -EPROBE_DEFER if the clock cannot be obtained

The clock may be provided by a driver which is yet to probe. Print the
actual error code as well.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c
index 92a6859..103e335 100644 (file)
--- a/drivers/media/i2c/smiapp/smiapp-core.c
+++ b/drivers/media/i2c/smiapp/smiapp-core.c
@@ -2557,8 +2557,9 @@ static int smiapp_init(struct smiapp_sensor *sensor)
        if (!sensor->hwcfg->set_xclk) {
                sensor->ext_clk = devm_clk_get(&client->dev, NULL);
                if (IS_ERR(sensor->ext_clk)) {
-                       dev_err(&client->dev, "could not get clock\n");
-                       return PTR_ERR(sensor->ext_clk);
+                       dev_err(&client->dev, "could not get clock (%ld)\n",
+                               PTR_ERR(sensor->ext_clk));
+                       return -EPROBE_DEFER;
                }
 
                rval = clk_set_rate(sensor->ext_clk,