Hi Aaron,
FYI, there are new smatch warnings show up in
tree: git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev.git upstream
head: 7e15e9be37eb834aaaca69030064ac97eaf5df2f
commit: f064a20dded807448669426c9bfb7d03aba5659c [7/11] libata: move acpi notification code to zpodd
New smatch warnings:
drivers/ata/libata-zpodd.c:83 zpodd_wake_dev() warn: variable dereferenced before check 'ata_dev' (see line 80)
git remote add libata git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev.git
git remote update libata
git checkout f064a20dded807448669426c9bfb7d03aba5659c
vim +/ata_dev +83 drivers/ata/libata-zpodd.c
afe75951 Aaron Lu 2013-01-15 74 return acpi_device_can_poweroff(acpi_dev);
afe75951 Aaron Lu 2013-01-15 75 }
afe75951 Aaron Lu 2013-01-15 76
f064a20d Aaron Lu 2013-01-15 77 static void zpodd_wake_dev(acpi_handle handle, u32 event, void *context)
f064a20d Aaron Lu 2013-01-15 78 {
f064a20d Aaron Lu 2013-01-15 79 struct ata_device *ata_dev = context;
f064a20d Aaron Lu 2013-01-15 @80 struct zpodd *zpodd = ata_dev->zpodd;
f064a20d Aaron Lu 2013-01-15 81 struct device *dev = &ata_dev->sdev->sdev_gendev;
f064a20d Aaron Lu 2013-01-15 82
f064a20d Aaron Lu 2013-01-15 @83 if (event == ACPI_NOTIFY_DEVICE_WAKE && ata_dev &&
f064a20d Aaron Lu 2013-01-15 84 pm_runtime_suspended(dev)) {
f064a20d Aaron Lu 2013-01-15 85 zpodd->from_notify = true;
f064a20d Aaron Lu 2013-01-15 86 pm_runtime_resume(dev);
---
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