From: Jia-Ju Bai <baijiaju1990@gmail.com>
Date: Sat, 6 Mar 2021 13:36:24 +0000 (-0800)
Subject: rpmsg: qcom_glink_native: fix error return code of qcom_glink_rx_data()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=26594c6bbb60c6bc87e3762a86ceece57d164c66;p=linux.git

rpmsg: qcom_glink_native: fix error return code of qcom_glink_rx_data()

When idr_find() returns NULL to intent, no error return code of
qcom_glink_rx_data() is assigned.
To fix this bug, ret is assigned with -ENOENT in this case.

Fixes: 64f95f87920d ("rpmsg: glink: Use the local intents when receiving data")
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Link: https://lore.kernel.org/r/20210306133624.17237-1-baijiaju1990@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---

diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index edae0c9a82366..05533c71b10ed 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -857,6 +857,7 @@ static int qcom_glink_rx_data(struct qcom_glink *glink, size_t avail)
 			dev_err(glink->dev,
 				"no intent found for channel %s intent %d",
 				channel->name, liid);
+			ret = -ENOENT;
 			goto advance_rx;
 		}
 	}