diff options
Diffstat (limited to 'drivers/ata/libata-core.c')
| -rw-r--r-- | drivers/ata/libata-core.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 1d894c9d73d..045a486a09e 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -1993,11 +1993,17 @@ unsigned int ata_do_simple_cmd(struct ata_device *dev, u8 cmd) * Check if the current speed of the device requires IORDY. Used * by various controllers for chip configuration. */ - unsigned int ata_pio_need_iordy(const struct ata_device *adev) { - /* Controller doesn't support IORDY. Probably a pointless check - as the caller should know this */ + /* Don't set IORDY if we're preparing for reset. IORDY may + * lead to controller lock up on certain controllers if the + * port is not occupied. See bko#11703 for details. + */ + if (adev->link->ap->pflags & ATA_PFLAG_RESETTING) + return 0; + /* Controller doesn't support IORDY. Probably a pointless + * check as the caller should know this. + */ if (adev->link->ap->flags & ATA_FLAG_NO_IORDY) return 0; /* CF spec. r4.1 Table 22 says no iordy on PIO5 and PIO6. */ @@ -2020,7 +2026,6 @@ unsigned int ata_pio_need_iordy(const struct ata_device *adev) * Compute the highest mode possible if we are not using iordy. Return * -1 if no iordy mode is available. */ - static u32 ata_pio_mask_no_iordy(const struct ata_device *adev) { /* If we have no drive specific rule, then PIO 2 is non IORDY */ |