[PATCH v4 2/8] 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>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas at linaro.org>
Reviewed-by: Simon Glass <sjg at chromium.org>
---

Changes since V3: None

 include/tpm_api.h | 2 +-
 lib/tpm_api.c     | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/tpm_api.h b/include/tpm_api.h
index 249a966942..4d77a49719 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 7d26ea2c3a..da48058abe 100644
--- a/lib/tpm_api.c
+++ b/lib/tpm_api.c
@@ -11,7 +11,8 @@
 #include <tpm-v2.h>
 #include <tpm_api.h>
 
-u32 tpm_startup(struct udevice *dev, enum tpm_startup_type mode)
+
+int tpm_startup(struct udevice *dev, enum tpm_startup_type mode)
 {
 	if (tpm_is_v1(dev)) {
 		return tpm1_startup(dev, mode);
-- 
2.25.1