vfio/pci: Make vfio_pci_regops->rw() return ssize_t

The only implementation of this in IGD returns a -ERRNO which is
implicitly cast through a size_t and then casted again and returned as a
ssize_t in vfio_pci_rw().

Fix the vfio_pci_regops->rw() return type to be ssize_t so all is
consistent.

Fixes: 28541d41c9e0 ("vfio/pci: Add infrastructure for additional device specific regions")
Signed-off-by: Yishai Hadas <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
Reviewed-by: Cornelia Huck <[email protected]>
Reviewed-by: Max Gurtovoy <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alex Williamson <[email protected]>

0 files changed, 0 insertions, 0 deletions