[PATCH v8 7/7] EDAC/igen6: Return consistent errno when another edac driver is enabled

From: Jia He <justin.he@arm.com>
To: Len Brown <lenb@kernel.org>, James Morse <james.morse@arm.com>,
	Tony Luck <tony.luck@intel.com>, Borislav Petkov <bp@alien8.de>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Robert Richter <rric@kernel.org>,
	Robert Moore <robert.moore@intel.com>,
	Qiuxu Zhuo <qiuxu.zhuo@intel.com>,
	Yazen Ghannam <yazen.ghannam@amd.com>,
	Jan Luebbe <jlu@pengutronix.de>,
	Khuong Dinh <khuong@os.amperecomputing.com>,
	Kani Toshi <toshi.kani@hpe.com>
Cc: Ard Biesheuvel <ardb@kernel.org>,
	linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-edac@vger.kernel.org, devel@acpica.org,
	"Rafael J . Wysocki" <rafael@kernel.org>,
	Shuai Xue <xueshuai@linux.alibaba.com>,
	Jarkko Sakkinen <jarkko@kernel.org>,
	linux-efi@vger.kernel.org, nd@arm.com, Jia He <justin.he@arm.com>
Subject: [PATCH v8 7/7] EDAC/igen6: Return consistent errno when another edac driver is enabled
Date: Mon, 10 Oct 2022 02:35:59 +0000	[thread overview]
Message-ID: <20221010023559.69655-8-justin.he@arm.com> (raw)
In-Reply-To: <20221010023559.69655-1-justin.he@arm.com>

Only a single edac driver can be enabled for EDAC MC. The igen6_init()
should be returned with EBUSY instead of ENODEV, which is consistent with
other edac drivers.

Signed-off-by: Jia He <justin.he@arm.com>
---
 drivers/edac/igen6_edac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/edac/igen6_edac.c b/drivers/edac/igen6_edac.c
index d33c666221f9..544dd19072ea 100644
--- a/drivers/edac/igen6_edac.c
+++ b/drivers/edac/igen6_edac.c
@@ -1276,7 +1276,7 @@ static int __init igen6_init(void)
 
 	owner = edac_get_owner();
 	if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
-		return -ENODEV;
+		return -EBUSY;
 
 	edac_op_state = EDAC_OPSTATE_NMI;
 
-- 
2.25.1

