[PATCH v3 2/2] tpm: Make use of TPM2_ALG_INVAL from enum

[Andrew Goodbody]

Now that the enum includes TPM2_ALG_INVAL, use that name in the
code.

Reviewed-by: Ilias Apalodimas <ilias.apalodi...@linaro.org>
Signed-off-by: Andrew Goodbody <andrew.goodb...@linaro.org>
---
 cmd/tpm-v2.c | 6 +++---
 lib/tpm-v2.c | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/cmd/tpm-v2.c b/cmd/tpm-v2.c
index a62862e94f9..346e21d27bb 100644
--- a/cmd/tpm-v2.c
+++ b/cmd/tpm-v2.c
@@ -113,7 +113,7 @@ static int do_tpm2_pcr_extend(struct cmd_tbl *cmdtp, int 
flag, int argc,
                return CMD_RET_USAGE;
        if (argc == 4) {
                algo = tpm2_name_to_algorithm(argv[3]);
-               if (algo < 0)
+               if (algo == TPM2_ALG_INVAL)
                        return CMD_RET_FAILURE;
        }
        algo_len = tpm2_algorithm_to_len(algo);
@@ -157,7 +157,7 @@ static int do_tpm_pcr_read(struct cmd_tbl *cmdtp, int flag, 
int argc,
                return CMD_RET_USAGE;
        if (argc == 4) {
                algo = tpm2_name_to_algorithm(argv[3]);
-               if (algo < 0)
+               if (algo == TPM2_ALG_INVAL)
                        return CMD_RET_FAILURE;
        }
        algo_len = tpm2_algorithm_to_len(algo);
@@ -288,7 +288,7 @@ static int do_tpm2_pcrallocate(struct cmd_tbl *cmdtp, int 
flag, int argc,
                return CMD_RET_USAGE;
 
        algo = tpm2_name_to_algorithm(argv[1]);
-       if (algo == -EINVAL)
+       if (algo == TPM2_ALG_INVAL)
                return CMD_RET_USAGE;
 
        ret = get_tpm(&dev);
diff --git a/lib/tpm-v2.c b/lib/tpm-v2.c
index 9ca7933c094..5b21c57ae42 100644
--- a/lib/tpm-v2.c
+++ b/lib/tpm-v2.c
@@ -1141,7 +1141,7 @@ enum tpm2_algorithms tpm2_name_to_algorithm(const char 
*name)
        }
        printf("%s: unsupported algorithm %s\n", __func__, name);
 
-       return -EINVAL;
+       return TPM2_ALG_INVAL;
 }
 
 const char *tpm2_algorithm_name(enum tpm2_algorithms algo)

-- 
2.39.5