[PATCH] sysreset: Fix unsupported request return values

[Paul Barker]

The description of the sysreset request method in <sysreset.h> says that
the return value should be -EPROTONOSUPPORT if the requested reset type
is not supported by this device.

Signed-off-by: Paul Barker <paul.barker.ct at bp.renesas.com>
---
 drivers/sysreset/poweroff_gpio.c     | 2 +-
 drivers/sysreset/sysreset_psci.c     | 2 +-
 drivers/sysreset/sysreset_sandbox.c  | 4 ++--
 drivers/sysreset/sysreset_watchdog.c | 2 +-
 drivers/sysreset/sysreset_x86.c      | 2 +-
 test/dm/sysreset.c                   | 6 +++---
 6 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/sysreset/poweroff_gpio.c b/drivers/sysreset/poweroff_gpio.c
index a5c24fd85bca..ad04e4b1a85e 100644
--- a/drivers/sysreset/poweroff_gpio.c
+++ b/drivers/sysreset/poweroff_gpio.c
@@ -33,7 +33,7 @@ static int poweroff_gpio_request(struct udevice *dev, enum sysreset_t type)
 	int r;
 
 	if (type != SYSRESET_POWER_OFF)
-		return -ENOSYS;
+		return -EPROTONOSUPPORT;
 
 	debug("GPIO poweroff\n");
 
diff --git a/drivers/sysreset/sysreset_psci.c b/drivers/sysreset/sysreset_psci.c
index a8a41528a849..aa09d0b88271 100644
--- a/drivers/sysreset/sysreset_psci.c
+++ b/drivers/sysreset/sysreset_psci.c
@@ -25,7 +25,7 @@ static int psci_sysreset_request(struct udevice *dev, enum sysreset_t type)
 		psci_sys_poweroff();
 		break;
 	default:
-		return -ENOSYS;
+		return -EPROTONOSUPPORT;
 	}
 
 	return -EINPROGRESS;
diff --git a/drivers/sysreset/sysreset_sandbox.c b/drivers/sysreset/sysreset_sandbox.c
index f485a1352993..c12eda81d03e 100644
--- a/drivers/sysreset/sysreset_sandbox.c
+++ b/drivers/sysreset/sysreset_sandbox.c
@@ -21,7 +21,7 @@ static int sandbox_warm_sysreset_request(struct udevice *dev,
 		state->last_sysreset = type;
 		break;
 	default:
-		return -ENOSYS;
+		return -EPROTONOSUPPORT;
 	}
 	if (!state->sysreset_allowed[type])
 		return -EACCES;
@@ -70,7 +70,7 @@ static int sandbox_sysreset_request(struct udevice *dev, enum sysreset_t type)
 			return -EACCES;
 		sandbox_exit();
 	default:
-		return -ENOSYS;
+		return -EPROTONOSUPPORT;
 	}
 	if (!state->sysreset_allowed[type])
 		return -EACCES;
diff --git a/drivers/sysreset/sysreset_watchdog.c b/drivers/sysreset/sysreset_watchdog.c
index ceada2e47b54..6db5aa75b541 100644
--- a/drivers/sysreset/sysreset_watchdog.c
+++ b/drivers/sysreset/sysreset_watchdog.c
@@ -29,7 +29,7 @@ static int wdt_reboot_request(struct udevice *dev, enum sysreset_t type)
 			return ret;
 		break;
 	default:
-		return -ENOSYS;
+		return -EPROTONOSUPPORT;
 	}
 
 	return -EINPROGRESS;
diff --git a/drivers/sysreset/sysreset_x86.c b/drivers/sysreset/sysreset_x86.c
index 4936fdb76c72..dc772b5ff9e3 100644
--- a/drivers/sysreset/sysreset_x86.c
+++ b/drivers/sysreset/sysreset_x86.c
@@ -87,7 +87,7 @@ static int x86_sysreset_request(struct udevice *dev, enum sysreset_t type)
 			return ret;
 		return -EINPROGRESS;
 	default:
-		return -ENOSYS;
+		return -EPROTONOSUPPORT;
 	}
 
 	outb(value, IO_PORT_RESET);
diff --git a/test/dm/sysreset.c b/test/dm/sysreset.c
index 691683c56740..5aa69e046186 100644
--- a/test/dm/sysreset.c
+++ b/test/dm/sysreset.c
@@ -27,8 +27,8 @@ static int dm_test_sysreset_base(struct unit_test_state *uts)
 	/* Device 1 is the warm sysreset device */
 	ut_assertok(uclass_get_device(UCLASS_SYSRESET, 1, &dev));
 	ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_WARM));
-	ut_asserteq(-ENOSYS, sysreset_request(dev, SYSRESET_COLD));
-	ut_asserteq(-ENOSYS, sysreset_request(dev, SYSRESET_POWER));
+	ut_asserteq(-EPROTONOSUPPORT, sysreset_request(dev, SYSRESET_COLD));
+	ut_asserteq(-EPROTONOSUPPORT, sysreset_request(dev, SYSRESET_POWER));
 
 	state->sysreset_allowed[SYSRESET_WARM] = true;
 	ut_asserteq(-EINPROGRESS, sysreset_request(dev, SYSRESET_WARM));
@@ -36,7 +36,7 @@ static int dm_test_sysreset_base(struct unit_test_state *uts)
 
 	/* Device 2 is the cold sysreset device */
 	ut_assertok(uclass_get_device(UCLASS_SYSRESET, 2, &dev));
-	ut_asserteq(-ENOSYS, sysreset_request(dev, SYSRESET_WARM));
+	ut_asserteq(-EPROTONOSUPPORT, sysreset_request(dev, SYSRESET_WARM));
 	state->sysreset_allowed[SYSRESET_COLD] = false;
 	ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_COLD));
 	state->sysreset_allowed[SYSRESET_COLD] = true;

base-commit: e17d174773e9ba9447596708e702b7382e47a6cf
-- 
2.39.2