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| author | Tejun Heo | 2006-02-15 10:24:09 +0100 |
|---|---|---|
| committer | Jeff Garzik | 2006-02-20 11:07:52 +0100 |
| commit | 6aff8f1f07a7fff48121d1ad4a550f3af24ccc81 (patch) | |
| tree | 3b02003f45b43c81b395c4a07e8c708599304bdd /drivers/scsi/libata-core.c | |
| parent | [PATCH] libata: rename ata_dev_id_[c_]string() (diff) | |
| download | kernel-qcow2-linux-6aff8f1f07a7fff48121d1ad4a550f3af24ccc81.tar.gz kernel-qcow2-linux-6aff8f1f07a7fff48121d1ad4a550f3af24ccc81.tar.xz kernel-qcow2-linux-6aff8f1f07a7fff48121d1ad4a550f3af24ccc81.zip | |
[PATCH] libata: update ata_dev_init_params()
Update ata_dev_init_params() such that it doesn't disable port
directly but return with appropriate error mask on failure. This is
preparation for splitting ata_dev_identify(). Note that this patch
changes behavior of dev_init_params failure such that only failing
devices are taken offline not the whole port. This change is
intended.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers/scsi/libata-core.c')
| -rw-r--r-- | drivers/scsi/libata-core.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index d694b20e81bf..76621463b499 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -62,7 +62,8 @@ #include "libata.h" static void ata_dev_reread_id(struct ata_port *ap, struct ata_device *dev); -static void ata_dev_init_params(struct ata_port *ap, struct ata_device *dev); +static unsigned int ata_dev_init_params(struct ata_port *ap, + struct ata_device *dev); static void ata_set_mode(struct ata_port *ap); static void ata_dev_set_xfermode(struct ata_port *ap, struct ata_device *dev); static unsigned int ata_get_mode_mask(const struct ata_port *ap, int shift); @@ -1041,7 +1042,12 @@ retry: * Some drives were very specific about that exact sequence. */ if (major_version < 4 || (!ata_id_has_lba(dev->id))) { - ata_dev_init_params(ap, dev); + err_mask = ata_dev_init_params(ap, dev); + if (err_mask) { + printk(KERN_ERR "ata%u: failed to init " + "parameters, disabled\n", ap->id); + goto err_out; + } /* current CHS translation info (id[53-58]) might be * changed. reread the identify device info. @@ -2530,17 +2536,23 @@ err_out: * @dev: Device to which command will be sent * * LOCKING: + * Kernel thread context (may sleep) + * + * RETURNS: + * 0 on success, AC_ERR_* mask otherwise. */ -static void ata_dev_init_params(struct ata_port *ap, struct ata_device *dev) +static unsigned int ata_dev_init_params(struct ata_port *ap, + struct ata_device *dev) { struct ata_taskfile tf; + unsigned int err_mask; u16 sectors = dev->id[6]; u16 heads = dev->id[3]; /* Number of sectors per track 1-255. Number of heads 1-16 */ if (sectors < 1 || sectors > 255 || heads < 1 || heads > 16) - return; + return 0; /* set up init dev params taskfile */ DPRINTK("init dev params \n"); @@ -2552,13 +2564,10 @@ static void ata_dev_init_params(struct ata_port *ap, struct ata_device *dev) tf.nsect = sectors; tf.device |= (heads - 1) & 0x0f; /* max head = num. of heads - 1 */ - if (ata_exec_internal(ap, dev, &tf, DMA_NONE, NULL, 0)) { - printk(KERN_ERR "ata%u: failed to init parameters, disabled\n", - ap->id); - ata_port_disable(ap); - } + err_mask = ata_exec_internal(ap, dev, &tf, DMA_NONE, NULL, 0); - DPRINTK("EXIT\n"); + DPRINTK("EXIT, err_mask=%x\n", err_mask); + return err_mask; } /** |