can: xilinx_can: xcan_probe(): skip error message on deferred probe

When can clock is provided from the clock wizard, clock wizard driver
may not be available when can driver probes resulting to the error
message "Device clock not found error".

As this error message is not very userful to the end user, skip printing
it in the case of deferred probe.

Fixes: b1201e44 ("can: xilinx CAN controller support")
Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c
index c7d043a408372d66f60d3433ae12b1719f155e67..161bb5e1f378be19f804f70f875cde7def9c27fe 100644 (file)
--- a/drivers/net/can/xilinx_can.c
+++ b/drivers/net/can/xilinx_can.c
@@ -1780,7 +1780,8 @@ static int xcan_probe(struct platform_device *pdev)
        /* Getting the CAN can_clk info */
        priv->can_clk = devm_clk_get(&pdev->dev, "can_clk");
        if (IS_ERR(priv->can_clk)) {
-               dev_err(&pdev->dev, "Device clock not found.\n");
+               if (PTR_ERR(priv->can_clk) != -EPROBE_DEFER)
+                       dev_err(&pdev->dev, "Device clock not found.\n");
                ret = PTR_ERR(priv->can_clk);
                goto err_free;
        }