Re: [PATCH] serial: 8250_uniphier: Use dev_err_probe() in probe error paths

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

On Fri, Sep 18, 2026 at 07:45:46AM +0000, Malathi A wrote:
> devm_clk_get_enabled() returns -EPROBE_DEFER while the clock provider is
> not registered yet, and uniphier_uart_probe() reports that with
> dev_err(). Every retry of an intermittently deferred probe therefore
> prints "failed to get and enable clock" at error level, which is only
> dmesg noise.
> 
> Use dev_err_probe() instead: it demotes -EPROBE_DEFER to dev_dbg() and
> records the reason for /sys/kernel/debug/devices_deferred. Convert the
> other two error messages in probe as well, so the whole function follows
> the "return dev_err_probe()" pattern already used by other 8250 drivers
> such as 8250_em.c. Those two codes are never -EPROBE_DEFER, so there the
> conversion is a readability change only.
> 
> Errors other than a deferral are still logged at error level, now with
> the error code added by the helper. No functional change otherwise.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

-- 
With Best Regards,
Andy Shevchenko