diff options
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/libata-scsi.c | 24 | ||||
| -rw-r--r-- | drivers/ata/pata_legacy.c | 2 | ||||
| -rw-r--r-- | drivers/ata/pata_octeon_cf.c | 2 | ||||
| -rw-r--r-- | drivers/ata/sata_via.c | 9 |
4 files changed, 19 insertions, 18 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index d050e073e570..66aa4bee80a6 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -2552,8 +2552,11 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc) * * If door lock fails, always clear sdev->locked to * avoid this infinite loop. + * + * This may happen before SCSI scan is complete. Make + * sure qc->dev->sdev isn't NULL before dereferencing. */ - if (qc->cdb[0] == ALLOW_MEDIUM_REMOVAL) + if (qc->cdb[0] == ALLOW_MEDIUM_REMOVAL && qc->dev->sdev) qc->dev->sdev->locked = 0; qc->scsicmd->result = SAM_STAT_CHECK_CONDITION; @@ -3163,8 +3166,8 @@ static inline int __ata_scsi_queuecmd(struct scsi_cmnd *scmd, /** * ata_scsi_queuecmd - Issue SCSI cdb to libata-managed device + * @shost: SCSI host of command to be sent * @cmd: SCSI command to be sent - * @done: Completion function, called when command is complete * * In some cases, this function translates SCSI commands into * ATA taskfiles, and queues the taskfiles to be sent to @@ -3174,37 +3177,36 @@ static inline int __ata_scsi_queuecmd(struct scsi_cmnd *scmd, * ATA and ATAPI devices appearing as SCSI devices. * * LOCKING: - * Releases scsi-layer-held lock, and obtains host lock. + * ATA host lock * * RETURNS: * Return value from __ata_scsi_queuecmd() if @cmd can be queued, * 0 otherwise. */ -int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) +int ata_scsi_queuecmd(struct Scsi_Host *shost, struct scsi_cmnd *cmd) { struct ata_port *ap; struct ata_device *dev; struct scsi_device *scsidev = cmd->device; - struct Scsi_Host *shost = scsidev->host; int rc = 0; + unsigned long irq_flags; ap = ata_shost_to_port(shost); - spin_unlock(shost->host_lock); - spin_lock(ap->lock); + spin_lock_irqsave(ap->lock, irq_flags); ata_scsi_dump_cdb(ap, cmd); dev = ata_scsi_find_dev(ap, scsidev); if (likely(dev)) - rc = __ata_scsi_queuecmd(cmd, done, dev); + rc = __ata_scsi_queuecmd(cmd, cmd->scsi_done, dev); else { cmd->result = (DID_BAD_TARGET << 16); - done(cmd); + cmd->scsi_done(cmd); } - spin_unlock(ap->lock); - spin_lock(shost->host_lock); + spin_unlock_irqrestore(ap->lock, irq_flags); + return rc; } diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c index eaf194138f21..6bd9425ba5ab 100644 --- a/drivers/ata/pata_legacy.c +++ b/drivers/ata/pata_legacy.c @@ -142,7 +142,7 @@ static int autospeed; /* Chip present which snoops speed changes */ static int pio_mask = ATA_PIO4; /* PIO range for autospeed devices */ static int iordy_mask = 0xFFFFFFFF; /* Use iordy if available */ -#ifdef PATA_WINBOND_VLB_MODULE +#ifdef CONFIG_PATA_WINBOND_VLB_MODULE static int winbond = 1; /* Set to probe Winbond controllers, give I/O port if non standard */ #else diff --git a/drivers/ata/pata_octeon_cf.c b/drivers/ata/pata_octeon_cf.c index 74b829817891..fa1b95a9a7ff 100644 --- a/drivers/ata/pata_octeon_cf.c +++ b/drivers/ata/pata_octeon_cf.c @@ -653,8 +653,6 @@ static irqreturn_t octeon_cf_interrupt(int irq, void *dev_instance) ap = host->ports[i]; ocd = ap->dev->platform_data; - - ocd = ap->dev->platform_data; cf_port = ap->private_data; dma_int.u64 = cvmx_read_csr(CVMX_MIO_BOOT_DMA_INTX(ocd->dma_engine)); diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c index c21589986c69..8b677bbf2d37 100644 --- a/drivers/ata/sata_via.c +++ b/drivers/ata/sata_via.c @@ -538,7 +538,7 @@ static int vt8251_prepare_host(struct pci_dev *pdev, struct ata_host **r_host) return 0; } -static void svia_configure(struct pci_dev *pdev) +static void svia_configure(struct pci_dev *pdev, int board_id) { u8 tmp8; @@ -577,7 +577,7 @@ static void svia_configure(struct pci_dev *pdev) } /* - * vt6421 has problems talking to some drives. The following + * vt6420/1 has problems talking to some drives. The following * is the fix from Joseph Chan <JosephChan@via.com.tw>. * * When host issues HOLD, device may send up to 20DW of data @@ -596,8 +596,9 @@ static void svia_configure(struct pci_dev *pdev) * * https://bugzilla.kernel.org/show_bug.cgi?id=15173 * http://article.gmane.org/gmane.linux.ide/46352 + * http://thread.gmane.org/gmane.linux.kernel/1062139 */ - if (pdev->device == 0x3249) { + if (board_id == vt6420 || board_id == vt6421) { pci_read_config_byte(pdev, 0x52, &tmp8); tmp8 |= 1 << 2; pci_write_config_byte(pdev, 0x52, tmp8); @@ -652,7 +653,7 @@ static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (rc) return rc; - svia_configure(pdev); + svia_configure(pdev, board_id); pci_set_master(pdev); return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt, |