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authorDavid Smith <dds@google.com>2008-01-14 00:55:12 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-01-14 08:52:22 -0800
commit2490c681ea3d7f5ac3fb876f14567bf1a9e0aa87 (patch)
tree1e5f1e5280cacc2db866a9f08b04d52702596898 /drivers/char/tpm
parent40d6a146629b98d8e322b6f9332b182c7cbff3df (diff)
TPM: fix suspend and resume failure
The savestate command structure was being overwritten by the result of running the TPM_SaveState command after one run, so make it a local variable to the function instead of a global variable that gets overwritten. Acked-by: Pavel Machek <pavel@ucw.cz> Cc: Kent Yoder <shpedoikal@gmail.com> Cc: Marcel Selhorst <tpm@selhorst.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/tpm')
-rw-r--r--drivers/char/tpm/tpm.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 39564b76d4a3..c88424a0c89b 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -1046,12 +1046,6 @@ void tpm_remove_hardware(struct device *dev)
}
EXPORT_SYMBOL_GPL(tpm_remove_hardware);
-static u8 savestate[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 10, /* blob length (in bytes) */
- 0, 0, 0, 152 /* TPM_ORD_SaveState */
-};
-
/*
* We are about to suspend. Save the TPM state
* so that it can be restored.
@@ -1059,6 +1053,12 @@ static u8 savestate[] = {
int tpm_pm_suspend(struct device *dev, pm_message_t pm_state)
{
struct tpm_chip *chip = dev_get_drvdata(dev);
+ u8 savestate[] = {
+ 0, 193, /* TPM_TAG_RQU_COMMAND */
+ 0, 0, 0, 10, /* blob length (in bytes) */
+ 0, 0, 0, 152 /* TPM_ORD_SaveState */
+ };
+
if (chip == NULL)
return -ENODEV;