From: Jingyi Wang <jingyi.wang@oss.qualcomm.com>
To: Bjorn Andersson <andersson@kernel.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: aiqun.yu@oss.qualcomm.com, tingwei.zhang@oss.qualcomm.com,
trilok.soni@oss.qualcomm.com, yijie.yang@oss.qualcomm.com,
linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org,
Jingyi Wang <jingyi.wang@oss.qualcomm.com>
Subject: [PATCH v2 0/3] remoteproc: improve robustness for rproc_attach fail cases
Date: Tue, 19 May 2026 00:20:01 -0700 [thread overview]
Message-ID: <20260519-rproc-attach-issue-v2-0-caa1eaf75081@oss.qualcomm.com> (raw)
Failure in rproc_attach() path can cause issues like NULL pointer
dereference when doing recovery and rproc_add() fail, improve the
robustness for rproc_attach fail cases.
Signed-off-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com>
---
Changes in v2:
- commit msg update
- Introduce subdevs_started flag instead of check nullptr
- Add change to cancel crash_handler work
- Link to v1: https://lore.kernel.org/r/20260409-rproc-attach-issue-v1-0-088a1c348e7a@oss.qualcomm.com
---
Jingyi Wang (3):
remoteproc: core: Attach rproc asynchronously in rproc_add() path via schedule_work()
remoteproc: core: Check subdev start status in rproc_stop()
remoteproc: core: cancel crash_handler work in rproc_add() error path
drivers/remoteproc/remoteproc_core.c | 25 ++++++++++++++++---------
include/linux/remoteproc.h | 4 ++++
2 files changed, 20 insertions(+), 9 deletions(-)
---
base-commit: e98d21c170b01ddef366f023bbfcf6b31509fa83
change-id: 20260518-rproc-attach-issue-5d26d820ab80
Best regards,
--
Jingyi Wang <jingyi.wang@oss.qualcomm.com>
next reply other threads:[~2026-05-19 7:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-19 7:20 Jingyi Wang [this message]
2026-05-19 7:20 ` [PATCH v2 1/3] remoteproc: core: Attach rproc asynchronously in rproc_add() path via schedule_work() Jingyi Wang
2026-05-19 7:20 ` [PATCH v2 2/3] remoteproc: core: Check subdev start status in rproc_stop() Jingyi Wang
2026-05-22 12:14 ` Stephan Gerhold
2026-05-28 3:31 ` Jingyi Wang
2026-05-19 7:20 ` [PATCH v2 3/3] remoteproc: core: cancel crash_handler work in rproc_add() error path Jingyi Wang
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