RE: [PATCH v2] apei/ghes: correctly return NULL for ghes_get_devices()

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> > Since 315bada690e0 ("EDAC: Check for GHES preference in the
> > chipset-specific EDAC drivers"), vendor specific EDAC driver will not
> > probe correctly when CONFIG_ACPI_APEI_GHES is enabled but no GHES device
> > is present.  Make ghes_get_devices() return NULL when the GHES device
> > list is empty to fix the problem.
> >
> > Fixes: 9057a3f7ac36 ("EDAC/ghes: Prepare to make ghes_edac a proper module")
> > Signed-off-by: Li Yang <leoyang.li@xxxxxxx>
> > Cc: Jia He <justin.he@xxxxxxx>
>
> Boris, Tony, any comments?

All of the callers are expecting NULL for a failure, not an empty list. So this looks OK to me.

Reviewed-by: Tony Luck <tony.luck@xxxxxxxxx>

-Tony




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