[PATCH 4/6] stm32mp: stm32prog: fix OTP read/write error management

[Patrick Delaunay]

Avoid to ignore the OTP read/write error and transmits the error
to STM32CubeProgrammer.

Today the error is only displayed in log error:
so the user on HOST thinks the OTP operation is performed.

Reported-by: Mickael GARDET <m.gardet at overkiz.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay at foss.st.com>
Fixes: 75ea9e75931c ("stm32mp: stm32prog: add TEE support in stm32prog command")
---

 arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c b/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c
index 6f3641ccf57b..c85217f6d61e 100644
--- a/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c
+++ b/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c
@@ -1439,8 +1439,11 @@ int stm32prog_otp_write(struct stm32prog_data *data, u32 offset, u8 *buffer,
 
 	if (!data->otp_part) {
 		data->otp_part = memalign(CONFIG_SYS_CACHELINE_SIZE, otp_size);
-		if (!data->otp_part)
+		if (!data->otp_part) {
+			stm32prog_err("OTP write issue %d", -ENOMEM);
+
 			return -ENOMEM;
+		}
 	}
 
 	if (!offset)
@@ -1503,6 +1506,8 @@ int stm32prog_otp_read(struct stm32prog_data *data, u32 offset, u8 *buffer,
 	memcpy(buffer, (void *)((uintptr_t)data->otp_part + offset), *size);
 
 end_otp_read:
+	if (result)
+		stm32prog_err("OTP read issue %d", result);
 	log_debug("%s: result %i\n", __func__, result);
 
 	return result;
@@ -1556,6 +1561,8 @@ int stm32prog_otp_start(struct stm32prog_data *data)
 
 	free(data->otp_part);
 	data->otp_part = NULL;
+	if (result)
+		stm32prog_err("OTP write issue %d", result);
 	log_debug("%s: result %i\n", __func__, result);
 
 	return result;
-- 
2.25.1