From: Ioana Radulescu <ruxandra.radulescu@nxp.com>
To: <gregkh@linuxfoundation.org>
CC: <devel@driverdev.osuosl.org>, <linux-kernel@vger.kernel.org>,
        <agraf@suse.de>, <arnd@arndb.de>,
        <linux-arm-kernel@lists.infradead.org>, <bogdan.purcareata@nxp.com>,
        <stuyoder@gmail.com>, <laurentiu.tudor@nxp.com>,
        <ruxandra.radulescu@nxp.com>, <roy.pledge@nxp.com>,
        <haiying.wang@nxp.com>
Subject: [PATCH] staging: fsl-mc/dpio: Propagate error code
Date: Thu, 15 Jun 2017 03:55:06 -0500
Message-ID: <20170615085506.31784-1-ruxandra.radulescu@nxp.com>
MIME-Version: 1.0
Content-Type: text/plain
SpamDiagnosticOutput: 1:99
SpamDiagnosticMetadata: NSPM
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Jun 2017 08:55:07.7604
 (UTC)
X-MS-Exchange-CrossTenant-Id: 5afe0b00-7697-4969-b663-5eab37d5f47e
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=5afe0b00-7697-4969-b663-5eab37d5f47e;Ip=[192.88.168.50];Helo=[tx30smr01.am.freescale.net]
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO2PR03MB2391
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
Content-Length: 1056
Lines: 30

dpaa2_io_service_register() returns zero even if
qbman_swp_CDAN_set() encountered an error. Fix this
by propagating the error code so the caller is informed
data availability notifications are not properly set
for a channel.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
---
 drivers/staging/fsl-mc/bus/dpio/dpio-service.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/fsl-mc/bus/dpio/dpio-service.c b/drivers/staging/fsl-mc/bus/dpio/dpio-service.c
index e5d66749614c..762f045f53f7 100644
--- a/drivers/staging/fsl-mc/bus/dpio/dpio-service.c
+++ b/drivers/staging/fsl-mc/bus/dpio/dpio-service.c
@@ -260,9 +260,9 @@ int dpaa2_io_service_register(struct dpaa2_io *d,
 
 	/* Enable the generation of CDAN notifications */
 	if (ctx->is_cdan)
-		qbman_swp_CDAN_set_context_enable(d->swp,
-						  (u16)ctx->id,
-						  ctx->qman64);
+		return qbman_swp_CDAN_set_context_enable(d->swp,
+							 (u16)ctx->id,
+							 ctx->qman64);
 	return 0;
 }
 EXPORT_SYMBOL(dpaa2_io_service_register);
-- 
2.11.0