On Sun, Feb 5, 2012 at 1:07 PM, Namjae Jeon <linkinjeon@xxxxxxxxx> wrote:
>> +
>> +/**
>> + * ufshcd_abort - abort a specific command
>> + * @cmd: SCSI command pointer
>> + *
>> + * Returns 0 on success, non-zero value on failure
>> + */
>> +static int ufshcd_abort(struct scsi_cmnd *cmd)
>> +{
>> + struct Scsi_Host *host;
>> + struct ufs_hba *hba;
>> + unsigned long flags;
>> + unsigned int tag;
>> + unsigned int pos;
>> + int err;
>> +
>> + host = cmd->device->host;
>> + hba = (struct ufs_hba *) host->hostdata;
>> + tag = cmd->request->tag;
>> +
>> + spin_lock_irqsave(host->host_lock, flags);
>> + pos = (1 << tag);
>> +
>> + /* check if command is still pending */
>> + if (!(hba->outstanding_reqs & pos)) {
>> + err = -1;
>> + spin_unlock_irqrestore(host->host_lock, flags);
>> + goto out;
>> + }
>> +
>> + err = ufshcd_issue_tm_cmd(hba, &hba->lrb[tag], UFS_ABORT_TASK);
> Hi.
> You called spin_lock_irqsave in ufshcd_issue_tm_cmd() without
> spin_unlock_irqrestore.
Thanks for reviewing the code. We'll correct it.
Please let us know your comments on the other patches too.
>
>> + if (!err) {
>> + spin_lock_irqsave(host->host_lock, flags);
> This case is same also.
> Thanks.
>> + scsi_dma_unmap(cmd);
>> +
>> + /* clear the respective UTRLCLR bit */
>> + writel(~pos,
>> + (UFSHCD_MMIO_BASE +
>> + REG_UTP_TRANSFER_REQ_LIST_CLEAR));
>> + hba->outstanding_reqs &= ~pos;
>> + hba->lrb[tag].cmd = NULL;
>> + spin_unlock_irqrestore(host->host_lock, flags);
>> + }
>> +out:
>> + return err;
>> +}
>> +
--
~Santosh
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