tpm-tpm: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
parent
09de36137c
commit
25368ca579
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@ -26,6 +26,7 @@
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#include <linux/poll.h>
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#include <linux/mutex.h>
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#include <linux/spinlock.h>
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#include <linux/smp_lock.h>
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#include "tpm.h"
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@ -897,6 +898,7 @@ int tpm_open(struct inode *inode, struct file *file)
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int rc = 0, minor = iminor(inode);
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struct tpm_chip *chip = NULL, *pos;
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lock_kernel();
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spin_lock(&driver_lock);
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list_for_each_entry(pos, &tpm_chip_list, list) {
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@ -926,16 +928,19 @@ int tpm_open(struct inode *inode, struct file *file)
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if (chip->data_buffer == NULL) {
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chip->num_opens--;
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put_device(chip->dev);
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unlock_kernel();
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return -ENOMEM;
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}
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atomic_set(&chip->data_pending, 0);
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file->private_data = chip;
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unlock_kernel();
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return 0;
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err_out:
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spin_unlock(&driver_lock);
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unlock_kernel();
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return rc;
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}
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EXPORT_SYMBOL_GPL(tpm_open);
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