Re: [PATCH] firewire: core: use release/acquire pair when replacing underlying driver on card removal

[Takashi Sakamoto]

On Sat, Oct 17, 2026 at 05:17:20PM +0900, Takashi Sakamoto wrote:
> When removing a card instance, the underlying driver is replaced to handle
> closing operations. Without proper memory reordering, other CPUs may
> observe the driver before it is fully initialized.
> 
> Use a release/acquire pair to ensure that the driver's initialization is
> visible before the driver is accessed for close operations.
> 
> Signed-off-by: Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx>
> ---
>  drivers/firewire/core-card.c        | 16 ++++++++-------
>  drivers/firewire/core-cdev.c        |  2 +-
>  drivers/firewire/core-device.c      |  8 ++++----
>  drivers/firewire/core-iso.c         | 32 +++++++++++++++++++++--------
>  drivers/firewire/core-transaction.c | 20 +++++++++---------
>  5 files changed, 47 insertions(+), 31 deletions(-)

Applied to for-next branch.


Regards

Takashi Sakamoto