vfio/platform: store mapped memory in region, instead of an on-stack copy

vfio_platform_{read,write}_mmio() call ioremap_nocache() to map
a region of io memory, which they store in struct vfio_platform_region to
be eventually re-used, or unmapped by vfio_platform_regions_cleanup().

These functions receive a copy of their struct vfio_platform_region
argument on the stack - so these mapped areas are always allocated, and
always leaked.

Pass this argument as a pointer instead.

Fixes: 6e3f26456009 "vfio/platform: read and write support for the device fd"
Signed-off-by: James Morse <[email protected]>
Acked-by: Baptiste Reynal <[email protected]>
Tested-by: Baptiste Reynal <[email protected]>
Signed-off-by: Alex Williamson <[email protected]>

0 files changed, 0 insertions, 0 deletions