linux-kernel - [PATCH 4.19 201/323] rpmsg: Fix rpmsg_create_ept return when RPMSG config is not defined

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Message-Id: <20211124115725.731880259@linuxfoundation.org>
Date:   Wed, 24 Nov 2021 12:56:31 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 201/323] rpmsg: Fix rpmsg_create_ept return when RPMSG config is not defined

From: Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>

[ Upstream commit 537d3af1bee8ad1415fda9b622d1ea6d1ae76dfa ]

According to the description of the rpmsg_create_ept in rpmsg_core.c
the function should return NULL on error.

Fixes: 2c8a57088045 ("rpmsg: Provide function stubs for API")
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@...aro.org>
Link: https://lore.kernel.org/r/20210712123912.10672-1-arnaud.pouliquen@foss.st.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 include/linux/rpmsg.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h
index 9fe156d1c018e..a68972b097b72 100644
--- a/include/linux/rpmsg.h
+++ b/include/linux/rpmsg.h
@@ -177,7 +177,7 @@ static inline struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_device *rpdev
 	/* This shouldn't be possible */
 	WARN_ON(1);
 
-	return ERR_PTR(-ENXIO);
+	return NULL;
 }
 
 static inline int rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len)
-- 
2.33.0