diff options
Diffstat (limited to 'drivers/scsi/ufs/ufshcd.c')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 35 |
1 files changed, 10 insertions, 25 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 6a4fd00117c..58f4ba6fe41 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -232,11 +232,11 @@ static inline u32 ufshcd_get_ufs_version(struct ufs_hba *hba) * the host controller * @reg_hcs - host controller status register value * - * Returns 0 if device present, non-zero if no device detected + * Returns 1 if device present, 0 if no device detected */ static inline int ufshcd_is_device_present(u32 reg_hcs) { - return (DEVICE_PRESENT & reg_hcs) ? 0 : -1; + return (DEVICE_PRESENT & reg_hcs) ? 1 : 0; } /** @@ -911,7 +911,7 @@ static int ufshcd_make_hba_operational(struct ufs_hba *hba) /* check if device present */ reg = readl((hba->mmio_base + REG_CONTROLLER_STATUS)); - if (ufshcd_is_device_present(reg)) { + if (!ufshcd_is_device_present(reg)) { dev_err(&hba->pdev->dev, "cc: Device not present\n"); err = -ENXIO; goto out; @@ -1163,6 +1163,8 @@ static int ufshcd_task_req_compl(struct ufs_hba *hba, u32 index) if (task_result != UPIU_TASK_MANAGEMENT_FUNC_COMPL && task_result != UPIU_TASK_MANAGEMENT_FUNC_SUCCEEDED) task_result = FAILED; + else + task_result = SUCCESS; } else { task_result = FAILED; dev_err(&hba->pdev->dev, @@ -1556,7 +1558,7 @@ ufshcd_issue_tm_cmd(struct ufs_hba *hba, goto out; } clear_bit(free_slot, &hba->tm_condition); - return ufshcd_task_req_compl(hba, free_slot); + err = ufshcd_task_req_compl(hba, free_slot); out: return err; } @@ -1580,7 +1582,7 @@ static int ufshcd_device_reset(struct scsi_cmnd *cmd) tag = cmd->request->tag; err = ufshcd_issue_tm_cmd(hba, &hba->lrb[tag], UFS_LOGICAL_RESET); - if (err) + if (err == FAILED) goto out; for (pos = 0; pos < hba->nutrs; pos++) { @@ -1620,7 +1622,7 @@ static int ufshcd_host_reset(struct scsi_cmnd *cmd) if (hba->ufshcd_state == UFSHCD_STATE_RESET) return SUCCESS; - return (ufshcd_do_reset(hba) == SUCCESS) ? SUCCESS : FAILED; + return ufshcd_do_reset(hba); } /** @@ -1652,7 +1654,7 @@ static int ufshcd_abort(struct scsi_cmnd *cmd) spin_unlock_irqrestore(host->host_lock, flags); err = ufshcd_issue_tm_cmd(hba, &hba->lrb[tag], UFS_ABORT_TASK); - if (err) + if (err == FAILED) goto out; scsi_dma_unmap(cmd); @@ -1953,24 +1955,7 @@ static struct pci_driver ufshcd_pci_driver = { #endif }; -/** - * ufshcd_init - Driver registration routine - */ -static int __init ufshcd_init(void) -{ - return pci_register_driver(&ufshcd_pci_driver); -} -module_init(ufshcd_init); - -/** - * ufshcd_exit - Driver exit clean-up routine - */ -static void __exit ufshcd_exit(void) -{ - pci_unregister_driver(&ufshcd_pci_driver); -} -module_exit(ufshcd_exit); - +module_pci_driver(ufshcd_pci_driver); MODULE_AUTHOR("Santosh Yaragnavi <santosh.sy@samsung.com>, " "Vinayak Holikatti <h.vinayak@samsung.com>"); |