tpm-tpm: BKL pushdown (25368ca5) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/char/tpm/tpm.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -26,6 +26,7 @@
		#include <linux/poll.h>
		#include <linux/mutex.h>
		#include <linux/spinlock.h>
		#include <linux/smp_lock.h>

		#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);