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firmware: arm_ffa: Unmap Rx/Tx buffers on init failure 

[ Upstream commit 9fda364cb78c8b9e1abe4029f877300c94655742 ]

ffa_init() maps the Rx/Tx buffers via ffa_rxtx_map() but on the
partition setup failure path it never unmaps them.

Add the missing ffa_rxtx_unmap() call in the error path so that
the Rx/Tx buffers are properly released before freeing the backing
pages.

Signed-off-by: Haoxiang Li <lihaoxiang@isrc.iscas.ac.cn>
Message-Id: <20251210031656.56194-1-lihaoxiang@isrc.iscas.ac.cn>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Haoxiang Li 2025-12-10 11:16:56 +08:00 committed by Sasha Levin
parent 2c99326dc1
commit 919785992a
1 changed files with 1 additions and 0 deletions
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1
drivers/firmware/arm_ffa/driver.c
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@ -2093,6 +2093,7 @@ static int __init ffa_init(void)
pr_err("failed to setup partitions\n");
ffa_notifications_cleanup();
ffa_rxtx_unmap(drv_info->vm_id);
free_pages:
if (drv_info->tx_buffer)
free_pages_exact(drv_info->tx_buffer, rxtx_bufsz);