[REGRESSION] Introduced double release_region in gpib/cb7210

[Dominik Karol Piątkowski]

Hi,

There are currently two patches [1][2] called:

gpib: cb7210: Fix region leak when request_irq fails

in linux-next that came from char-misc-next. Patch [1] introduces double 
release_region (if cb_isa_attach fails, cb_isa_detach is called and it already
takes care of cleanup) and patch [2] introduces release_region on region we
never obtained.

cb_isa_attach is set as attach and cb_isa_detach is set as detach in
cb_isa_(un)accel_interface and cb_isa_interface. The only place where I see
attach is called, is in common/iblib.c, in ibonline function. If attach fails
there, detach is called, where a proper cleanup is performed (and it includes
things like nec7210_board_reset for cb7120). AFAIK, the same approach is used
for the rest of gpib.

Please revert these patches.

Additionally, patch [2] was cc'd to stable@xxxxxxxxxxxxxxx - hence adding it
to cc for this email as well.

Thanks,
Dominik Karol


[1] https://patch.msgid.link/20260503093036.283546-1-zenghongling@xxxxxxxxxx
[2] https://patch.msgid.link/20260518022939.16881-1-zenghongling@xxxxxxxxxx