[PATCH] usb: dwc3: core: Use IS_ERR_VALUE() for ref_clk rate check

[Marek Vasut]

On 2/9/26 9:14 PM, Jonas Karlman wrote:
> clk_get_rate() in U-Boot is documented to return clock rate on success,
> 0 for invalid clock and -ve error code for other errors. This differ
> slightly from Linux where only >= 0 is returned from clk_get_rate().
> 
> Some clock drivers take advantage of this difference and may return -ve
> error code for clocks not fully supported in U-Boot.
> 
> Use IS_ERR_VALUE() to check for an error code in addition to current
> invalid clock check to fix broken and unpredicted behavior when clock
> driver returns a -ve error code for the ref_clk.
> 
> Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
I wonder if it would be better to fix the API discrepancy . Could you 
try that instead ?