From 25368ca579905efe7f7dda43c252eb7b371de98c Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 20 May 2008 19:16:51 +0200 Subject: [PATCH] tpm-tpm: BKL pushdown Signed-off-by: Arnd Bergmann --- drivers/char/tpm/tpm.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index a5d8bcb4000..e1fc193d939 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -26,6 +26,7 @@ #include #include #include +#include #include "tpm.h" @@ -897,6 +898,7 @@ int tpm_open(struct inode *inode, struct file *file) int rc = 0, minor = iminor(inode); struct tpm_chip *chip = NULL, *pos; + lock_kernel(); spin_lock(&driver_lock); list_for_each_entry(pos, &tpm_chip_list, list) { @@ -926,16 +928,19 @@ int tpm_open(struct inode *inode, struct file *file) if (chip->data_buffer == NULL) { chip->num_opens--; put_device(chip->dev); + unlock_kernel(); return -ENOMEM; } atomic_set(&chip->data_pending, 0); file->private_data = chip; + unlock_kernel(); return 0; err_out: spin_unlock(&driver_lock); + unlock_kernel(); return rc; } EXPORT_SYMBOL_GPL(tpm_open); -- 2.41.1