On Fri, Oct 15, 2021 at 07:58:17PM +0530, Naveen Naidu wrote:

Make PCI_OP_READ and PCI_USER_READ_CONFIG set the data value with error
response (~0), when the PCI device read by a host controller fails.

This ensures that the controller drivers no longer need to fabricate
(~0) value when they detect error. It also  gurantees that the error
response (~0) is always set when the controller drivers fails to read a
config register from a device.

This makes error response fabrication consistent and helps in removal of
a lot of repeated code.

Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Naveen Naidu <redacted>
---
 drivers/pci/access.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

Reviewed-by: Rob Herring <robh@kernel.org>
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