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    Subject[PATCH 5.19 0267/1157] spi: Return deferred probe error when controller isnt yet available
    Date
    From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

    [ Upstream commit 9c22ec4ac27bcc5a54dd406da168f403327a5b55 ]

    If the controller is not available, it might be in the future and
    we would like to re-probe the peripheral again. For that purpose
    return deferred probe.

    BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215993
    Fixes: 87e59b36e5e2 ("spi: Support selection of the index of the ACPI Spi Resource before alloc")
    Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
    Link: https://lore.kernel.org/r/20220709212956.25530-1-andriy.shevchenko@linux.intel.com
    Signed-off-by: Mark Brown <broonie@kernel.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/spi/spi.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
    index ea09d1b42bf6..62aa3f062f3d 100644
    --- a/drivers/spi/spi.c
    +++ b/drivers/spi/spi.c
    @@ -2398,7 +2398,7 @@ static int acpi_spi_add_resource(struct acpi_resource *ares, void *data)

    ctlr = acpi_spi_find_controller_by_adev(adev);
    if (!ctlr)
    - return -ENODEV;
    + return -EPROBE_DEFER;

    lookup->ctlr = ctlr;
    }
    --
    2.35.1


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