--- drivers/char/tpm/tpm.c

+++ drivers/char/tpm/tpm.c

@@ -969,7 +969,7 @@ int tpm_open(struct inode *inode, struct

return -EBUSY;

}

- chip->data_buffer = kmalloc(TPM_BUFSIZE * sizeof(u8), GFP_KERNEL);

+ chip->data_buffer = kzalloc(TPM_BUFSIZE, GFP_KERNEL);

if (chip->data_buffer == NULL) {

clear_bit(0, &chip->is_open);

put_device(chip->dev);