[git patches] libata (and devres) fixes

Jeff Garzik
2007-03-09T16:31:51Z

Please pull from 'upstream-linus' branch of
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git upstream-linus

to receive the following updates:

drivers/ata/ata_piix.c | 11 +++--------
drivers/ata/libata-core.c | 19 ++++++++++++-------
drivers/ata/sata_nv.c | 8 +++++++-
drivers/base/core.c | 7 +++++++
4 files changed, 29 insertions(+), 16 deletions(-)

Alan Cox (1):
ata_piix: Remove ugly layering violation

Petr Vandrovec (1):
Fix simplex adapters with libata

Robert Hancock (1):
sata_nv: revert use of notifiers for now

Tejun Heo (2):
libata: fix ata_host_release() free order
devres: release resources on device_del()

diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index dc42ba1..b952c58 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -93,7 +93,7 @@
#include <linux/libata.h>

#define DRV_NAME "ata_piix"
-#define DRV_VERSION "2.10"
+#define DRV_VERSION "2.10ac1"

enum {
PIIX_IOCFG = 0x54, /* IDE I/O configuration register */
@@ -667,14 +667,9 @@ static int ich_pata_prereset(struct ata_port *ap)
{
struct pci_dev *pdev = to_pci_dev(ap->host->dev);

- if (!pci_test_config_bits(pdev, &piix_enable_bits[ap->port_no])) {
- ata_port_printk(ap, KERN_INFO, "port disabled. ignoring.\n");
- ap->eh_context.i.action &= ~ATA_EH_RESET_MASK;
- return 0;
- }
-
+ if (!pci_test_config_bits(pdev, &piix_enable_bits[ap->port_no]))
+ return -ENOENT;
ich_pata_cbl_detect(ap);
-
return ata_std_prereset(ap);
}

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index dc362fa..3c1f883 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3455,7 +3455,8 @@ static void ata_dev_xfermask(struct ata_device *dev)
"device is on DMA blacklist, disabling DMA\n");
}

- if ((host->flags & ATA_HOST_SIMPLEX) && host->simplex_claimed != ap) {
+ if ((host->flags & ATA_HOST_SIMPLEX) &&
+ host->simplex_claimed && host->simplex_claimed != ap) {
xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
ata_dev_printk(dev, KERN_WARNING, "simplex DMA is claimed by "
"other device, disabling DMA\n");
@@ -5684,18 +5685,22 @@ static void ata_host_release(struct device *gendev, void *res)
for (i = 0; i < host->n_ports; i++) {
struct ata_port *ap = host->ports[i];

- if (!ap)
- continue;
-
- if (ap->ops->port_stop)
+ if (ap && ap->ops->port_stop)
ap->ops->port_stop(ap);
-
- scsi_host_put(ap->scsi_host);
}

if (host->ops->host_stop)
host->ops->host_stop(host);

+ for (i = 0; i < host->n_ports; i++) {
+ struct ata_port *ap = host->ports[i];
+
+ if (ap)
+ scsi_host_put(ap->scsi_host);
+
+ host->ports[i] = NULL;
+ }
+
dev_set_drvdata(gendev, NULL);
}

diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 388d07f..9d9670a 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -874,8 +874,14 @@ static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance)

if (status & (NV_ADMA_STAT_DONE |
NV_ADMA_STAT_CPBERR)) {
- u32 check_commands = notifier | notifier_error;
+ u32 check_commands;
int pos, error = 0;
+
+ if(ata_tag_valid(ap->active_tag))
+ check_commands = 1 << ap->active_tag;
+ else
+ check_commands = ap->sactive;
+
/** Check CPBs for completed commands */
while ((pos = ffs(check_commands)) && !error) {
pos--;
diff --git a/drivers/base/core.c b/drivers/base/core.c
index cf2a398..89ebe36 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -787,6 +787,13 @@ void device_del(struct device * dev)
device_remove_attrs(dev);
bus_remove_device(dev);

+ /*
+ * Some platform devices are driven without driver attached
+ * and managed resources may have been acquired. Make sure
+ * all resources are released.
+ */
+ devres_release_all(dev);
+
/* Notify the platform of the removal, in case they
* need to do anything...
*/