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authorMaarten Lankhorst <dev@lankhorst.se>2025-07-08 16:49:07 +0200
committerMaarten Lankhorst <dev@lankhorst.se>2025-07-08 16:49:07 +0200
commite21354aea4b4420b53c44e36828607a7c94a994c (patch)
tree003636d3a15eaebe9b948f9f8db6ad9e52a7e12c /kernel/time/posix-cpu-timers.c
parentdrm/tegra: Use dma_buf from GEM object instance (diff)
parentMerge tag 'drm-msm-next-2025-07-05' of https://gitlab.freedesktop.org/drm/msm... (diff)
downloadlinux-e21354aea4b4420b53c44e36828607a7c94a994c.tar.gz
linux-e21354aea4b4420b53c44e36828607a7c94a994c.zip
Merge remote-tracking branch 'drm/drm-next' into drm-misc-next
Pull in drm-intel-next for the updates to drm panic handling. Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
Diffstat (limited to 'kernel/time/posix-cpu-timers.c')
-rw-r--r--kernel/time/posix-cpu-timers.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index 50e8d04ab661..2e5b89d7d866 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -1406,6 +1406,15 @@ void run_posix_cpu_timers(void)
lockdep_assert_irqs_disabled();
/*
+ * Ensure that release_task(tsk) can't happen while
+ * handle_posix_cpu_timers() is running. Otherwise, a concurrent
+ * posix_cpu_timer_del() may fail to lock_task_sighand(tsk) and
+ * miss timer->it.cpu.firing != 0.
+ */
+ if (tsk->exit_state)
+ return;
+
+ /*
* If the actual expiry is deferred to task work context and the
* work is already scheduled there is no point to do anything here.
*/