On Thu, 2024-10-31 at 14:26 -0700, Bart Van Assche wrote:
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The RTC update work involves runtime resuming the UFS controller. Hence, only start the RTC update work after runtime power management in the UFS driver has been fully initialized. This patch fixes the following kernel crash:
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Workqueue: events ufshcd_rtc_work Call trace: _raw_spin_lock_irqsave+0x34/0x8c (P) pm_runtime_get_if_active+0x24/0x9c (L) pm_runtime_get_if_active+0x24/0x9c ufshcd_rtc_work+0x138/0x1b4 process_one_work+0x148/0x288 worker_thread+0x2cc/0x3d4 kthread+0x110/0x114 ret_from_fork+0x10/0x20
Reported-by: Neil Armstrong neil.armstrong@linaro.org Closes: https://lore.kernel.org/linux-scsi/0c0bc528-fdc2-4106-bc99-f23ae377f6f5@lina... Fixes: 6bf999e0eb41 ("scsi: ufs: core: Add UFS RTC support") Cc: Bean Huo beanhuo@micron.com Cc: stable@vger.kernel.org Signed-off-by: Bart Van Assche bvanassche@acm.org
Reviewed-by: Peter Wang peter.wang@mediatek.com