firmware: raspberrypi: Keep count of all consumers
[ Upstream commit 1e7c57355a3bc617fc220234889e49fe722a6305 ]
When unbinding the firmware device we need to make sure it has no
consumers left. Otherwise we'd leave them with a firmware handle
pointing at freed memory.
Keep a reference count of all consumers and introduce rpi_firmware_put()
which will permit automatically decrease the reference count upon
unbinding consumer drivers.
Suggested-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Nicolas Saenz Julienne <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Reviewed-by: Stephen Boyd <[email protected]>
Reviewed-by: Bartosz Golaszewski <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
2 files changed
