Re: [PATCH] libata: clean up ZPODD when a port is detached
On Tue, May 06, 2014 at 03:57:48PM +0200, Levente Kurusa wrote: > When a ZPODD device is unbound via sysfs, the ACPI notify handler > is not removed. This causes panics as observed in Bug #74601. The > panic only happens when the wake happens from outside the kernel > (i.e. inserting a media or pressing a button). Add a loop to > ata_port_detach which loops through the port's devices and checks > if zpodd is enabled, if so call zpodd_exit. > > Cc: sta...@vger.kernel.org > Reviewed-by: Aaron Lu > Signed-off-by: Levente Kurusa Applied to libata/for-3.15-fixes. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] libata: clean up ZPODD when a port is detached
On Tue, May 06, 2014 at 03:57:48PM +0200, Levente Kurusa wrote: When a ZPODD device is unbound via sysfs, the ACPI notify handler is not removed. This causes panics as observed in Bug #74601. The panic only happens when the wake happens from outside the kernel (i.e. inserting a media or pressing a button). Add a loop to ata_port_detach which loops through the port's devices and checks if zpodd is enabled, if so call zpodd_exit. Cc: sta...@vger.kernel.org Reviewed-by: Aaron Lu aaron...@intel.com Signed-off-by: Levente Kurusa le...@linux.com Applied to libata/for-3.15-fixes. Thanks. -- tejun -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH] libata: clean up ZPODD when a port is detached
When a ZPODD device is unbound via sysfs, the ACPI notify handler
is not removed. This causes panics as observed in Bug #74601. The
panic only happens when the wake happens from outside the kernel
(i.e. inserting a media or pressing a button). Add a loop to
ata_port_detach which loops through the port's devices and checks
if zpodd is enabled, if so call zpodd_exit.
Cc: sta...@vger.kernel.org
Reviewed-by: Aaron Lu
Signed-off-by: Levente Kurusa
---
drivers/ata/libata-core.c | 9 +
1 file changed, 9 insertions(+)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 943cc8b..ea83828 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -6314,6 +6314,8 @@ int ata_host_activate(struct ata_host *host, int irq,
static void ata_port_detach(struct ata_port *ap)
{
unsigned long flags;
+ struct ata_link *link;
+ struct ata_device *dev;
if (!ap->ops->error_handler)
goto skip_eh;
@@ -6333,6 +6335,13 @@ static void ata_port_detach(struct ata_port *ap)
cancel_delayed_work_sync(>hotplug_task);
skip_eh:
+ /* clean up zpodd on port removal */
+ ata_for_each_link(link, ap, HOST_FIRST) {
+ ata_for_each_dev(dev, link, ALL) {
+ if (zpodd_dev_enabled(dev))
+ zpodd_exit(dev);
+ }
+ }
if (ap->pmp_link) {
int i;
for (i = 0; i < SATA_PMP_MAX_PORTS; i++)
--
1.8.3.1
--
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[PATCH] libata: clean up ZPODD when a port is detached
When a ZPODD device is unbound via sysfs, the ACPI notify handler
is not removed. This causes panics as observed in Bug #74601. The
panic only happens when the wake happens from outside the kernel
(i.e. inserting a media or pressing a button). Add a loop to
ata_port_detach which loops through the port's devices and checks
if zpodd is enabled, if so call zpodd_exit.
Cc: sta...@vger.kernel.org
Reviewed-by: Aaron Lu aaron...@intel.com
Signed-off-by: Levente Kurusa le...@linux.com
---
drivers/ata/libata-core.c | 9 +
1 file changed, 9 insertions(+)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 943cc8b..ea83828 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -6314,6 +6314,8 @@ int ata_host_activate(struct ata_host *host, int irq,
static void ata_port_detach(struct ata_port *ap)
{
unsigned long flags;
+ struct ata_link *link;
+ struct ata_device *dev;
if (!ap-ops-error_handler)
goto skip_eh;
@@ -6333,6 +6335,13 @@ static void ata_port_detach(struct ata_port *ap)
cancel_delayed_work_sync(ap-hotplug_task);
skip_eh:
+ /* clean up zpodd on port removal */
+ ata_for_each_link(link, ap, HOST_FIRST) {
+ ata_for_each_dev(dev, link, ALL) {
+ if (zpodd_dev_enabled(dev))
+ zpodd_exit(dev);
+ }
+ }
if (ap-pmp_link) {
int i;
for (i = 0; i SATA_PMP_MAX_PORTS; i++)
--
1.8.3.1
--
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