From: Sudeep Holla <sudeep.holla@kernel.org>
To: arm-scmi@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Cc: Cristian Marussi <cristian.marussi@arm.com>
Subject: [PATCH v6 04/16] firmware: arm_scmi: Clean up channels on setup failure
Date: Tue, 14 Jul 2026 13:56:23 +0100 [thread overview]
Message-ID: <20260714-scmi_core_fixes-v6-4-3afe499d46e3@kernel.org> (raw)
In-Reply-To: <20260714-scmi_core_fixes-v6-0-3afe499d46e3@kernel.org>
scmi_channels_setup() can fail after the common BASE channel or earlier
protocol channels have already been registered in the TX/RX IDRs.
Route this failure through the existing channel cleanup label so the
transport channels, transport devices and IDR state created before the
failure are released before the probe error path frees the SCMI instance
ID.
Fixes: 05a2801d8b90 ("firmware: arm_scmi: Use dedicated devices to initialize channels")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
---
drivers/firmware/arm_scmi/driver.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c
index ec373595f955..d2af47d03b4b 100644
--- a/drivers/firmware/arm_scmi/driver.c
+++ b/drivers/firmware/arm_scmi/driver.c
@@ -3263,7 +3263,7 @@ static int scmi_probe(struct platform_device *pdev)
ret = scmi_channels_setup(info);
if (ret) {
err_str = "failed to setup channels\n";
- goto clear_ida;
+ goto clear_txrx_setup;
}
ret = bus_register_notifier(&scmi_bus_type, &info->bus_nb);
@@ -3379,7 +3379,6 @@ static int scmi_probe(struct platform_device *pdev)
scmi_notification_quiesce(&info->handle);
scmi_cleanup_txrx_channels(info);
scmi_notification_exit(&info->handle);
-clear_ida:
ida_free(&scmi_id, info->id);
out_err:
--
2.43.0
next prev parent reply other threads:[~2026-07-14 12:58 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-14 12:56 [PATCH v6 00/16] firmware: arm_scmi: Fix SCMI core cleanup paths Sudeep Holla
2026-07-14 12:56 ` [PATCH v6 01/16] firmware: arm_scmi: Publish channel state before callbacks Sudeep Holla
2026-07-14 12:56 ` [PATCH v6 02/16] firmware: arm_scmi: Unregister device notifier before IDR teardown Sudeep Holla
2026-07-14 12:56 ` [PATCH v6 03/16] firmware: arm_scmi: Quiesce notifications before teardown Sudeep Holla
2026-07-14 12:56 ` Sudeep Holla [this message]
2026-07-14 12:56 ` [PATCH v6 05/16] firmware: arm_scmi: Free transport channel on IDR failure Sudeep Holla
2026-07-14 12:56 ` [PATCH v6 06/16] firmware: arm_scmi: Avoid IDR updates while cleaning channels Sudeep Holla
2026-07-14 12:56 ` [PATCH v6 07/16] firmware: arm_scmi: Reject out of range DT protocol IDs Sudeep Holla
2026-07-14 12:56 ` [PATCH v6 08/16] firmware: arm_scmi: Use channel ID for transport teardown Sudeep Holla
2026-07-14 12:56 ` [PATCH v6 09/16] firmware: arm_scmi: Protect device request lookup with RCU Sudeep Holla
2026-07-14 12:56 ` [PATCH v6 10/16] firmware: arm_scmi: Drop handle on protocol bind failures Sudeep Holla
2026-07-14 12:56 ` [PATCH v6 11/16] firmware: arm_scmi: Clear SystemPower flag on create failure Sudeep Holla
2026-07-14 12:56 ` [PATCH v6 12/16] firmware: arm_scmi: Fix OF node reference handling Sudeep Holla
2026-07-14 12:56 ` [PATCH v6 13/16] firmware: arm_scmi: Unwind TX receiver mailbox setup failure Sudeep Holla
2026-07-14 12:56 ` [PATCH v6 14/16] firmware: arm_scmi: Unwind P2A " Sudeep Holla
2026-07-14 12:56 ` [PATCH v6 15/16] firmware: arm_scmi: Fix SCMI device destroy lifetimes Sudeep Holla
2026-07-14 12:56 ` [PATCH v6 16/16] firmware: arm_scmi: Fix transport device teardown lookup Sudeep Holla
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