Hi Jia-Ju On 12/18/19 1:51 PM, Jia-Ju Bai wrote: > The driver may sleep while holding a spinlock. > The function call path (from bottom to top) in Linux 4.19 is: > > sound/soc/sti/uniperif_player.c, 229: > mutex_lock in uni_player_set_channel_status > sound/soc/sti/uniperif_player.c, 608: > uni_player_set_channel_status in uni_player_ctl_iec958_put > sound/soc/sti/uniperif_player.c, 603: > _raw_spin_lock_irqsave in uni_player_ctl_iec958_put > > mutex_lock() can sleep at runtime. > > I am not sure how to properly fix this possible bug, so I only report it. > > This bug is found by a static analysis tool STCheck written by myself. Thank you for pointing out the bug, I will test and send a fix. Regards Arnaud > > > Best wishes, > Jia-Ju Bai > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
