[PATCH] char/tpm: use msleep(), clean-up timers,

The TPM driver unnecessarily uses timers when it simply needs to maintain a
maximum delay via time_before().  msleep() is used instead of
schedule_timeout() to guarantee the task delays as expected.  While
compile-testing, I found a typo in the driver, using tpm_chp instead of
tpm_chip.  Remove the now unused timer callback function and change
TPM_TIMEOUT's units to milliseconds.  Patch is compile-tested.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Acked-by: Kylene Hall <kjhall@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index de0c796fce80..3c4ee433ec7f 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -25,7 +25,7 @@
 #include <linux/fs.h>
 #include <linux/miscdevice.h>
 
-#define TPM_TIMEOUT msecs_to_jiffies(5)
+#define TPM_TIMEOUT     5       /* msecs */
 
 /* TPM addresses */
 #define TPM_ADDR                        0x4E
@@ -78,7 +78,6 @@ static inline void tpm_write_index(int index, int value)
         outb(value & 0xFF, TPM_DATA);
 }
 
-extern void tpm_time_expired(unsigned long);
 extern int tpm_lpc_bus_init(struct pci_dev *, u16);
 
 extern int tpm_register_hardware(struct pci_dev *,