5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
[ Upstream commit b5c9ee8296a3760760c7b5d2e305f91412adc795 ]
Add check for the return value of kstrdup() and return the error
if it fails in order to avoid NULL pointer dereference.
Fixes: b4f8e52b89f6 ("rpmsg: Introduce Qualcomm RPM glink driver")
Signed-off-by: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230619030631.12361-1-jiasheng@xxxxxxxxxxx
Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/rpmsg/qcom_glink_native.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index 11ba44dc551e4..f65db95e78aa4 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -222,6 +222,10 @@ static struct glink_channel *qcom_glink_alloc_channel(struct qcom_glink *glink,
channel->glink = glink;
channel->name = kstrdup(name, GFP_KERNEL);
+ if (!channel->name) {
+ kfree(channel);
+ return ERR_PTR(-ENOMEM);
+ }
init_completion(&channel->open_req);
init_completion(&channel->open_ack);
--
2.40.1
