bus: bt1-apb: Don't print error on -EPROBE_DEFER

The Baikal-T1 APB bus driver correctly handles the deferred probe
situation, but still pollutes the system log with a misleading error
message. Let's fix that by using the dev_err_probe() method to print the
log message in case of the clocks/resets request errors.

Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Link: https://lore.kernel.org/r/20220610104030.28399-1-Sergey.Semin@baikalelectronics.ru'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/drivers/bus/bt1-apb.c b/drivers/bus/bt1-apb.c
index b25ff94..63b1b4a 100644 (file)
--- a/drivers/bus/bt1-apb.c
+++ b/drivers/bus/bt1-apb.c
@@ -175,10 +175,9 @@ static int bt1_apb_request_rst(struct bt1_apb *apb)
        int ret;
 
        apb->prst = devm_reset_control_get_optional_exclusive(apb->dev, "prst");
-       if (IS_ERR(apb->prst)) {
-               dev_warn(apb->dev, "Couldn't get reset control line\n");
-               return PTR_ERR(apb->prst);
-       }
+       if (IS_ERR(apb->prst))
+               return dev_err_probe(apb->dev, PTR_ERR(apb->prst),
+                                    "Couldn't get reset control line\n");
 
        ret = reset_control_deassert(apb->prst);
        if (ret)
@@ -199,10 +198,9 @@ static int bt1_apb_request_clk(struct bt1_apb *apb)
        int ret;
 
        apb->pclk = devm_clk_get(apb->dev, "pclk");
-       if (IS_ERR(apb->pclk)) {
-               dev_err(apb->dev, "Couldn't get APB clock descriptor\n");
-               return PTR_ERR(apb->pclk);
-       }
+       if (IS_ERR(apb->pclk))
+               return dev_err_probe(apb->dev, PTR_ERR(apb->pclk),
+                                    "Couldn't get APB clock descriptor\n");
 
        ret = clk_prepare_enable(apb->pclk);
        if (ret) {