[PATCH v2] ufs: core: fix racing issue between ufshcd_mcq_abort and ISR

[Martin K. Petersen]

On Mon, 06 Nov 2023 15:51:17 +0800, peter.wang at mediatek.com wrote:

> If command timeout happen and cq complete irq raise at the same time,
> ufshcd_mcq_abort null the lprb->cmd and NULL poiner KE in ISR.
> Below is error log.
> 
> ufshcd_abort: Device abort task at tag 18
> Unable to handle kernel NULL pointer dereference at virtual address
> 0000000000000108
> pc : [0xffffffe27ef867ac] scsi_dma_unmap+0xc/0x44
> lr : [0xffffffe27f1b898c] ufshcd_release_scsi_cmd+0x24/0x114
> 
> [...]

Applied to 6.7/scsi-fixes, thanks!

[1/1] ufs: core: fix racing issue between ufshcd_mcq_abort and ISR
      https://git.kernel.org/mkp/scsi/c/27900d7119c4

-- 
Martin K. Petersen	Oracle Linux Engineering