scsi: ufs: core: Fix synchronization between scsi_unjam_host() and ufshcd_queuecommand()

The SCSI error handler calls scsi_unjam_host() which can call the queue
function ufshcd_queuecommand() indirectly. The error handler changes the
state to UFSHCD_STATE_RESET while running, but error interrupts that
happen while the error handler is running could change the state to
UFSHCD_STATE_EH_SCHEDULED_NON_FATAL which would allow requests to go
through ufshcd_queuecommand() even though the error handler is running.
Block that hole by checking whether the error handler is in progress.

Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Asutosh Das <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>

0 files changed, 0 insertions, 0 deletions