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>,
Sudeep Holla <sudeep.holla@kernel.org>,
Sashiko <sashiko-bot@kernel.org>,
Sudeep Holla <sudeep.holla@kernel.org>
Subject: [PATCH 3/9] firmware: arm_scmi: Clean up channels on setup failure
Date: Tue, 30 Jun 2026 10:05:59 +0100 [thread overview]
Message-ID: <20260630-scmi_core_fixes-v1-3-f932c1e51992@kernel.org> (raw)
In-Reply-To: <20260630-scmi_core_fixes-v1-0-f932c1e51992@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 b9ba566fc759..861087b2920e 100644
--- a/drivers/firmware/arm_scmi/driver.c
+++ b/drivers/firmware/arm_scmi/driver.c
@@ -3262,7 +3262,7 @@ 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);
@@ -3377,7 +3377,6 @@ static int scmi_probe(struct platform_device *pdev)
bus_unregister_notifier(&scmi_bus_type, &info->bus_nb);
clear_txrx_setup:
scmi_cleanup_txrx_channels(info);
-clear_ida:
ida_free(&scmi_id, info->id);
out_err:
--
2.43.0
next prev parent reply other threads:[~2026-06-30 9:21 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-30 9:05 [PATCH 0/9] firmware: arm_scmi: Fix SCMI core cleanup paths Sudeep Holla
2026-06-30 9:05 ` [PATCH 1/9] firmware: arm_scmi: Fix OF node reference handling Sudeep Holla
2026-06-30 9:05 ` [PATCH 2/9] firmware: arm_scmi: Fix transport device teardown lookup Sudeep Holla
2026-06-30 9:05 ` Sudeep Holla [this message]
2026-06-30 9:06 ` [PATCH 4/9] firmware: arm_scmi: Fix SCMI device destroy lifetimes Sudeep Holla
2026-06-30 9:06 ` [PATCH 5/9] firmware: arm_scmi: Free transport channel on IDR failure Sudeep Holla
2026-06-30 9:06 ` [PATCH 6/9] firmware: arm_scmi: Unregister device notifier before IDR teardown Sudeep Holla
2026-06-30 9:06 ` [PATCH 7/9] firmware: arm_scmi: Unwind TX receiver mailbox setup failure Sudeep Holla
2026-06-30 9:06 ` [PATCH 8/9] firmware: arm_scmi: Unwind P2A " Sudeep Holla
2026-06-30 9:06 ` [PATCH 9/9] firmware: arm_scmi: Protect device request lookup with RCU Sudeep Holla
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260630-scmi_core_fixes-v1-3-f932c1e51992@kernel.org \
--to=sudeep.holla@kernel.org \
--cc=arm-scmi@vger.kernel.org \
--cc=cristian.marussi@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=sashiko-bot@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox