tree 54e1cf049707d70f623c8c7d235c114740d25e1d
parent e47302846cc538386c6cb62e41da485876f8bed0
author Martin Radev <martin.b.radev@gmail.com> 1652128779 +0300
committer Will Deacon <will@kernel.org> 1653078992 +0100

virtio: Check for overflows in QUEUE_NOTIFY and QUEUE_SEL

This patch checks for overflows in QUEUE_NOTIFY and QUEUE_SEL in
the PCI and MMIO operation handling paths. Further, the return
value type of get_vq_count is changed from int to uint since negative
doesn't carry any semantic meaning.

Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Martin Radev <martin.b.radev@gmail.com>
Link: https://lore.kernel.org/r/20220509203940.754644-6-martin.b.radev@gmail.com
Signed-off-by: Will Deacon <will@kernel.org>