diff options
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/libata-core.c | 44 | ||||
| -rw-r--r-- | drivers/ata/libata-scsi.c | 9 | ||||
| -rw-r--r-- | drivers/ata/libata.h | 9 | ||||
| -rw-r--r-- | drivers/ata/pata_pxa.c | 1 | ||||
| -rw-r--r-- | drivers/ata/sata_gemini.c | 2 |
5 files changed, 57 insertions, 8 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 3d0027ec33c2..80196326ff8f 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -1338,7 +1338,7 @@ static int ata_hpa_resize(struct ata_device *dev) /* do we need to do it? */ if ((dev->class != ATA_DEV_ATA && dev->class != ATA_DEV_ZAC) || !ata_id_has_lba(dev->id) || !ata_id_hpa_enabled(dev->id) || - (dev->quirks & ATA_QUIRK_BROKEN_HPA)) + (dev->quirks & ATA_QUIRK_BROKEN_HPA) || ata_id_is_locked(dev->id)) return 0; /* read native max address */ @@ -1540,6 +1540,7 @@ unsigned int ata_exec_internal(struct ata_device *dev, struct ata_taskfile *tf, { struct ata_link *link = dev->link; struct ata_port *ap = link->ap; + const bool owns_eh_mutex = ap->host->eh_owner == current; u8 command = tf->command; struct ata_queued_cmd *qc; struct scatterlist sgl; @@ -1617,11 +1618,25 @@ unsigned int ata_exec_internal(struct ata_device *dev, struct ata_taskfile *tf, } } - ata_eh_release(ap); + if (owns_eh_mutex) { + /* + * To prevent that the compiler complains about the + * ata_eh_release() call below. + */ + __acquire(&ap->host->eh_mutex); + ata_eh_release(ap); + } rc = wait_for_completion_timeout(&wait, msecs_to_jiffies(timeout)); - ata_eh_acquire(ap); + if (owns_eh_mutex) { + ata_eh_acquire(ap); + /* + * To prevent that the compiler complains about the above + * ata_eh_acquire() call. + */ + __release(&ap->host->eh_mutex); + } ata_sff_flush_pio_task(ap); @@ -2832,6 +2847,24 @@ static void ata_dev_config_cpr(struct ata_device *dev) if (!nr_cpr) goto out; + /* + * The device reports the number of CPR descriptors independently of the + * log size, and that count is also used to emit VPD page B9h into the + * fixed-size rbuf. Reject a count larger than what that buffer can hold + * (ATA_DEV_MAX_CPR) or larger than the log the device actually returned. + */ + if (nr_cpr > ATA_DEV_MAX_CPR) { + ata_dev_warn(dev, + "Too many concurrent positioning ranges\n"); + goto out; + } + + if (buf_len < 64 + (size_t)nr_cpr * 32) { + ata_dev_warn(dev, + "Invalid number of concurrent positioning ranges\n"); + goto out; + } + cpr_log = kzalloc_flex(*cpr_log, cpr, nr_cpr); if (!cpr_log) goto out; @@ -3959,7 +3992,7 @@ int ata_dev_revalidate(struct ata_device *dev, unsigned int new_class, /* verify n_sectors hasn't changed */ if (dev->class != ATA_DEV_ATA || !n_sectors || - dev->n_sectors == n_sectors) + dev->n_sectors == n_sectors || ata_id_is_locked(dev->id)) return 0; /* n_sectors has changed */ @@ -4280,6 +4313,9 @@ static const struct ata_dev_quirks_entry __ata_dev_quirks[] = { /* Apacer models with LPM issues */ { "Apacer AS340*", NULL, ATA_QUIRK_NOLPM }, + /* PNY CS900 (Phison PS3111-S11, DRAM-less) drops the link on DIPM */ + { "PNY CS900 1TB SSD", NULL, ATA_QUIRK_NOLPM }, + /* Silicon Motion models with LPM issues */ { "MD619HXCLDE3TC", "TCVAID", ATA_QUIRK_NOLPM }, { "MD619GXCLDE3TC", "TCV35D", ATA_QUIRK_NOLPM }, diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index d43207c6e467..41b3b4732776 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -37,8 +37,6 @@ #include "libata.h" #include "libata-transport.h" -#define ATA_SCSI_RBUF_SIZE 2048 - static DEFINE_SPINLOCK(ata_scsi_rbuf_lock); static u8 ata_scsi_rbuf[ATA_SCSI_RBUF_SIZE]; @@ -1931,8 +1929,13 @@ static void ata_scsi_rbuf_fill(struct ata_device *dev, struct scsi_cmnd *cmd, memset(ata_scsi_rbuf, 0, ATA_SCSI_RBUF_SIZE); len = actor(dev, cmd, ata_scsi_rbuf); if (len) { + if (WARN_ON(len > ATA_SCSI_RBUF_SIZE)) { + ata_scsi_set_sense(dev, cmd, ABORTED_COMMAND, 0, 0); + spin_unlock_irqrestore(&ata_scsi_rbuf_lock, flags); + return; + } sg_copy_from_buffer(scsi_sglist(cmd), scsi_sg_count(cmd), - ata_scsi_rbuf, ATA_SCSI_RBUF_SIZE); + ata_scsi_rbuf, len); cmd->result = SAM_STAT_GOOD; if (scsi_bufflen(cmd) > len) scsi_set_resid(cmd, scsi_bufflen(cmd) - len); diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index b5423b6e97de..329e9c5776f0 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -148,6 +148,15 @@ static inline bool ata_acpi_dev_manage_restart(struct ata_device *dev) { return #endif /* libata-scsi.c */ +#define ATA_SCSI_RBUF_SIZE 2048 + +/* + * Maximum number of concurrent positioning ranges (CPR) supported. The ACS + * specifications allow up to 255, but we limit this to the number of CPR + * descriptors that fit in the rbuf buffer used to emit VPD page B9h. + */ +#define ATA_DEV_MAX_CPR min(255, ((ATA_SCSI_RBUF_SIZE - 64) / 32)) + extern struct ata_device *ata_scsi_find_dev(struct ata_port *ap, const struct scsi_device *scsidev); extern int ata_scsi_add_hosts(struct ata_host *host, diff --git a/drivers/ata/pata_pxa.c b/drivers/ata/pata_pxa.c index 03dbaf4a13a7..9f63bdfb8576 100644 --- a/drivers/ata/pata_pxa.c +++ b/drivers/ata/pata_pxa.c @@ -286,6 +286,7 @@ static int pxa_ata_probe(struct platform_device *pdev) ret = dmaengine_slave_config(data->dma_chan, &config); if (ret < 0) { dev_err(&pdev->dev, "dma configuration failed: %d\n", ret); + dma_release_channel(data->dma_chan); return ret; } diff --git a/drivers/ata/sata_gemini.c b/drivers/ata/sata_gemini.c index 530ee26b3012..56ae2820df58 100644 --- a/drivers/ata/sata_gemini.c +++ b/drivers/ata/sata_gemini.c @@ -353,7 +353,7 @@ static int gemini_sata_probe(struct platform_device *pdev) if (sg->ide_pins) { ret = gemini_setup_ide_pins(dev); if (ret) - return ret; + goto out_unprep_clk; } dev_info(dev, "set up the Gemini IDE/SATA nexus\n"); |