tree bed053014957e87778486e4e5dc3f5e7ccb66f81
parent cb13aa16f34f794a9cee2626862af8a95f0f0ee9
author Peter Rosin <peda@axentia.se> 1646220155 +0100
committer Wolfram Sang <wsa@kernel.org> 1647733783 +0100

i2c: mux: demux-pinctrl: do not deactivate a master that is not active

Attempting to rollback the activation of the current master when
the current master has not been activated is bad. priv->cur_chan
and priv->cur_adap are both still zeroed out and the rollback
may result in attempts to revert an of changeset that has not been
applied and do result in calls to both del and put the zeroed out
i2c_adapter. Maybe it crashes, or whatever, but it's bad in any
case.

Fixes: e9d1a0a41d44 ("i2c: mux: demux-pinctrl: Fix an error handling path in 'i2c_demux_pinctrl_probe()'")
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@kernel.org>