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| author | Jin Dongming <jin.dongming@np.css.fujitsu.com> | 2010-09-29 19:53:53 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-09-29 14:02:26 -0400 |
| commit | 1dd6b20e368765223c31569d364219785b24700b (patch) | |
| tree | 1217f73eff83cc603feb86cfd47f4a9876901758 /drivers/acpi/apei/ghes.c | |
| parent | bad97c37db9c1ee36de8ac58f9f73931d15a2e94 (diff) | |
| download | linux-1dd6b20e368765223c31569d364219785b24700b.tar.bz2 | |
ACPI, APEI, HEST Fix the unsuitable usage of platform_data
platform_data in hest_parse_ghes() is used for saving the address of entry
information of erst_tab. When the device is failed to be added, platform_data
will be freed by platform_device_put(). But the value saved in platform_data
should not be freed here. If it is done, it will make system panic.
So I think platform_data should save the address of allocated memory
which saves entry information of erst_tab.
This patch fixed it and I confirmed it on x86_64 next-tree.
v2:
Transport the pointer of hest_hdr to platform_data using
platform_device_add_data()
Signed-off-by: Jin Dongming <jin.dongming@np.css.fujitsu.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/apei/ghes.c')
| -rw-r--r-- | drivers/acpi/apei/ghes.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index 385a6059714a..0d505e59214d 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -302,7 +302,7 @@ static int __devinit ghes_probe(struct platform_device *ghes_dev) struct ghes *ghes = NULL; int rc = -EINVAL; - generic = ghes_dev->dev.platform_data; + generic = *(struct acpi_hest_generic **)ghes_dev->dev.platform_data; if (!generic->enabled) return -ENODEV; |