Messages in this thread | | | Date | Wed, 22 Feb 2023 09:33:02 +0000 | Subject | Re: [PATCH] coresight: tmc-etr: Handle enable failure in tmc_read_unprepare_etr | From | Suzuki K Poulose <> |
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On 21/02/2023 18:38, Yabin Cui wrote: > Ping for review? > > On Fri, Feb 10, 2023 at 11:43 PM Yabin Cui <yabinc@google.com> wrote: >> >> It's similar to what we did in tmc_read_unprepare_etb. >> >> Signed-off-by: Yabin Cui <yabinc@google.com> >> ---
Thanks Yabin for the patch, will queue this at rc1
Suzuki
>> drivers/hwtracing/coresight/coresight-tmc-etr.c | 7 ++++++- >> 1 file changed, 6 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c >> index 918d461fcf4a..b04f12079efd 100644 >> --- a/drivers/hwtracing/coresight/coresight-tmc-etr.c >> +++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c >> @@ -1763,6 +1763,7 @@ int tmc_read_unprepare_etr(struct tmc_drvdata *drvdata) >> { >> unsigned long flags; >> struct etr_buf *sysfs_buf = NULL; >> + int rc = 0; >> >> /* config types are set a boot time and never change */ >> if (WARN_ON_ONCE(drvdata->config_type != TMC_CONFIG_TYPE_ETR)) >> @@ -1777,7 +1778,11 @@ int tmc_read_unprepare_etr(struct tmc_drvdata *drvdata) >> * buffer. Since the tracer is still enabled drvdata::buf can't >> * be NULL. >> */ >> - __tmc_etr_enable_hw(drvdata); >> + rc = __tmc_etr_enable_hw(drvdata); >> + if (rc) { >> + spin_unlock_irqrestore(&drvdata->spinlock, flags); >> + return rc; >> + } >> } else { >> /* >> * The ETR is not tracing and the buffer was just read. >> -- >> 2.39.1.581.gbfd45094c4-goog >>
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