From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: Mike Leach <mike.leach@linaro.org>,
James Clark <james.clark@linaro.org>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Leo Yan <leo.yan@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>,
coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Tamas Zsoldos <tamas.zsoldos@arm.com>
Subject: Re: [PATCH v2] coresight: trbe: Return NULL pointer for allocation failures
Date: Fri, 5 Sep 2025 13:26:30 +0100 [thread overview]
Message-ID: <175707517468.1603863.4031069288262415474.b4-ty@arm.com> (raw)
In-Reply-To: <20250904-cs_etm_auxsetup_fix_error_handling-v2-1-a502d0bafb95@arm.com>
On Thu, 04 Sep 2025 15:13:52 +0100, Leo Yan wrote:
> When the TRBE driver fails to allocate a buffer, it currently returns
> the error code "-ENOMEM". However, the caller etm_setup_aux() only
> checks for a NULL pointer, so it misses the error. As a result, the
> driver continues and eventually causes a kernel panic.
>
> Fix this by returning a NULL pointer from arm_trbe_alloc_buffer() on
> allocation failures. This allows that the callers can properly handle
> the failure.
>
> [...]
Applied, thanks!
[1/1] coresight: trbe: Return NULL pointer for allocation failures
https://git.kernel.org/coresight/c/811e07b1812a
Best regards,
--
Suzuki K Poulose <suzuki.poulose@arm.com>
prev parent reply other threads:[~2025-09-05 12:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-04 14:13 Leo Yan
2025-09-04 14:46 ` James Clark
2025-09-04 16:10 ` Markus Elfring
2025-09-05 12:26 ` Suzuki K Poulose [this message]
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