mbox_request_channel() returning value was changed in case of error.
It uses returning value of of_parse_phandle_with_args().
It is returning with -ENOENT instead of -ENODEV when no mboxes property
exists.
Fixes: 24fdd5074b20 ("mailbox: use error ret code of
of_parse_phandle_with_args()")
Reviewed-by: Dmitry Baryshkov <dmitry.barysh...@oss.qualcomm.com>
Reviewed-by: Stephan Gerhold <stephan.gerh...@linaro.org>
Tested-by: Stephan Gerhold <stephan.gerh...@linaro.org> # msm8939
Signed-off-by: Barnabás Czémán <barnabas.cze...@mainlining.org>
---
mbox_request_channel() returning value was changed in case of error.
It uses returning value of of_parse_phandle_with_args().
It is returning with -ENOENT instead of -ENODEV when no mboxes property
exists.
ENODEV was checked before fallback to parse qcom,ipc property.
---
Changes in v2:
- Drop already applied patch.
- qcom_smd: rebase
- Link to v1:
https://lore.kernel.org/r/20250421-fix-qcom-smd-v1-0-574d071d3...@mainlining.org
---
drivers/rpmsg/qcom_smd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c
index
f0f12e7ad2a61922723c16e45738e93bd432c6c6..42594f5ee4385c0071c91d9a5a05fb8517c82bc0
100644
--- a/drivers/rpmsg/qcom_smd.c
+++ b/drivers/rpmsg/qcom_smd.c
@@ -1368,7 +1368,7 @@ static int qcom_smd_parse_edge(struct device *dev,
edge->mbox_client.knows_txdone = true;
edge->mbox_chan = mbox_request_channel(&edge->mbox_client, 0);
if (IS_ERR(edge->mbox_chan)) {
- if (PTR_ERR(edge->mbox_chan) != -ENODEV) {
+ if (PTR_ERR(edge->mbox_chan) != -ENOENT) {
ret = dev_err_probe(dev, PTR_ERR(edge->mbox_chan),
"failed to acquire IPC mailbox\n");
goto put_node;
---
base-commit: d7af19298454ed155f5cf67201a70f5cf836c842
change-id: 20250421-fix-qcom-smd-76f7c414a11a
Best regards,
--
Barnabás Czémán <barnabas.cze...@mainlining.org>
