[PATCH 03/10] tpm: Fix the return type of tpm_startup

[Sughosh Ganu]

The tpm_startup function returns negative values for error
conditions. Fix the return type of the function to a signed int
instead of a u32.

Signed-off-by: Sughosh Ganu <sughosh.ganu at linaro.org>
---
 include/tpm_api.h | 2 +-
 lib/tpm_api.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/tpm_api.h b/include/tpm_api.h
index b9e3e8b5e6..fb6ee14e23 100644
--- a/include/tpm_api.h
+++ b/include/tpm_api.h
@@ -18,7 +18,7 @@
  * @param mode		TPM startup mode
  * Return: return code of the operation
  */
-u32 tpm_startup(struct udevice *dev, enum tpm_startup_type mode);
+int tpm_startup(struct udevice *dev, enum tpm_startup_type mode);
 
 /**
  * Issue a TPM_SelfTestFull command.
diff --git a/lib/tpm_api.c b/lib/tpm_api.c
index 1bbe33a3fc..b762202866 100644
--- a/lib/tpm_api.c
+++ b/lib/tpm_api.c
@@ -21,7 +21,7 @@ static bool is_tpm2(struct udevice *dev)
 	return IS_ENABLED(CONFIG_TPM_V2) && tpm_get_version(dev) == TPM_V2;
 }
 
-u32 tpm_startup(struct udevice *dev, enum tpm_startup_type mode)
+int tpm_startup(struct udevice *dev, enum tpm_startup_type mode)
 {
 	if (is_tpm1(dev)) {
 		return tpm1_startup(dev, mode);
-- 
2.17.1