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Adrian HunterandGreg Kroah-Hartman
5423c6f460
[ Upstream commitb3ba8383da] i3c_master_add_i3c_dev_locked() is called after a device has already been assigned a dynamic address. If the function fails, the address remains marked as free and may be reallocated to another device, leading to address conflicts on the bus. Ensure the address is not marked as free on failure, by updating the address slot state to prevent the address from being re-used. Emit an error message to inform of the failure. Opportunistically remove the !master check because it is impossible. Note, directly resetting the device's dynamic address is no longer an option, since Direct RSTDAA was deprecated from I3C starting from version 1.1 and v1.1 (or later) target devices are meant to NACK it. Fixes:3a379bbcea("i3c: Add core I3C infrastructure") Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20260612080107.11606-4-adrian.hunter@intel.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Sasha Levin <sashal@kernel.org>