| Message ID | 20220309182439.1053856-1-kai.vehmanen@linux.intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v3] ALSA: hda/i915 - avoid hung task timeout in i915 wait | expand |
On 09/03/2022 18:24, Kai Vehmanen wrote: > If kernel is built with hung task detection enabled and > CONFIG_DEFAULT_HUNG_TASK_TIMEOUT set to less than 60 seconds, > snd_hdac_i915_init() will trigger the hung task timeout in case i915 is > not available and taint the kernel. > > Use wait_for_completion_killable_timeout() for the wait to > avoid this problem. > > Co-developed-by: Ramalingam C <ramalingam.c@intel.com> > Signed-off-by: Ramalingam C <ramalingam.c@intel.com> > Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> > --- > sound/hda/hdac_i915.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > Changes V2->V3: > - drop the loop and just use > wait_for_completion_killable_timeout() (feedback from Tvrtko Ursulin) > - new approach, so dropped the previous reviewed-by tags > > diff --git a/sound/hda/hdac_i915.c b/sound/hda/hdac_i915.c > index 454474ac5716..efe810af28c5 100644 > --- a/sound/hda/hdac_i915.c > +++ b/sound/hda/hdac_i915.c > @@ -160,8 +160,8 @@ int snd_hdac_i915_init(struct hdac_bus *bus) > if (!IS_ENABLED(CONFIG_MODULES) || > !request_module("i915")) { > /* 60s timeout */ > - wait_for_completion_timeout(&acomp->master_bind_complete, > - msecs_to_jiffies(60 * 1000)); > + wait_for_completion_killable_timeout(&acomp->master_bind_complete, > + msecs_to_jiffies(60 * 1000)); > } > } > if (!acomp->ops) { Works for me, as discussed I think this is more correct. Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Regards, Tvrtko > > base-commit: 3a0099a1909dea6022690b0ae496938dd2e5771c
On Wed, 09 Mar 2022 19:24:39 +0100, Kai Vehmanen wrote: > > If kernel is built with hung task detection enabled and > CONFIG_DEFAULT_HUNG_TASK_TIMEOUT set to less than 60 seconds, > snd_hdac_i915_init() will trigger the hung task timeout in case i915 is > not available and taint the kernel. > > Use wait_for_completion_killable_timeout() for the wait to > avoid this problem. > > Co-developed-by: Ramalingam C <ramalingam.c@intel.com> > Signed-off-by: Ramalingam C <ramalingam.c@intel.com> > Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Applied now. Thanks. Takashi
diff --git a/sound/hda/hdac_i915.c b/sound/hda/hdac_i915.c index 454474ac5716..efe810af28c5 100644 --- a/sound/hda/hdac_i915.c +++ b/sound/hda/hdac_i915.c @@ -160,8 +160,8 @@ int snd_hdac_i915_init(struct hdac_bus *bus) if (!IS_ENABLED(CONFIG_MODULES) || !request_module("i915")) { /* 60s timeout */ - wait_for_completion_timeout(&acomp->master_bind_complete, - msecs_to_jiffies(60 * 1000)); + wait_for_completion_killable_timeout(&acomp->master_bind_complete, + msecs_to_jiffies(60 * 1000)); } } if (!acomp->ops) {