diff options
Diffstat (limited to 'drivers/char/tpm/tpm2-space.c')
| -rw-r--r-- | drivers/char/tpm/tpm2-space.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/char/tpm/tpm2-space.c b/drivers/char/tpm/tpm2-space.c index 363afdd4d1d3..60354cd53b5c 100644 --- a/drivers/char/tpm/tpm2-space.c +++ b/drivers/char/tpm/tpm2-space.c @@ -12,7 +12,7 @@ */ #include <linux/gfp.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "tpm.h" enum tpm2_handle_types { @@ -68,8 +68,8 @@ void tpm2_del_space(struct tpm_chip *chip, struct tpm_space *space) kfree(space->session_buf); } -static int tpm2_load_context(struct tpm_chip *chip, u8 *buf, - unsigned int *offset, u32 *handle) +int tpm2_load_context(struct tpm_chip *chip, u8 *buf, + unsigned int *offset, u32 *handle) { struct tpm_buf tbuf; struct tpm2_context *ctx; @@ -105,6 +105,9 @@ static int tpm2_load_context(struct tpm_chip *chip, u8 *buf, *handle = 0; tpm_buf_destroy(&tbuf); return -ENOENT; + } else if (tpm2_rc_value(rc) == TPM2_RC_INTEGRITY) { + tpm_buf_destroy(&tbuf); + return -EINVAL; } else if (rc > 0) { dev_warn(&chip->dev, "%s: failed with a TPM error 0x%04X\n", __func__, rc); @@ -119,8 +122,8 @@ static int tpm2_load_context(struct tpm_chip *chip, u8 *buf, return 0; } -static int tpm2_save_context(struct tpm_chip *chip, u32 handle, u8 *buf, - unsigned int buf_size, unsigned int *offset) +int tpm2_save_context(struct tpm_chip *chip, u32 handle, u8 *buf, + unsigned int buf_size, unsigned int *offset) { struct tpm_buf tbuf; unsigned int body_size; @@ -166,6 +169,9 @@ void tpm2_flush_space(struct tpm_chip *chip) struct tpm_space *space = &chip->work_space; int i; + if (!space) + return; + for (i = 0; i < ARRAY_SIZE(space->context_tbl); i++) if (space->context_tbl[i] && ~space->context_tbl[i]) tpm2_flush_context(chip, space->context_tbl[i]); |