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| author | Sibi Sankar <sibis@codeaurora.org> | 2018-04-03 23:45:15 +0530 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2018-04-05 22:53:16 -0700 |
| commit | 730b2ad8f72898029160a6832141ba954122a0c8 (patch) | |
| tree | 783d539515ec1c2b682fb18266d72b9fd4b14bed | |
| parent | dea4bd1975e36e3127a95e74c3670ea8d7f4796f (diff) | |
| download | linux-730b2ad8f72898029160a6832141ba954122a0c8.tar.gz linux-730b2ad8f72898029160a6832141ba954122a0c8.tar.bz2 linux-730b2ad8f72898029160a6832141ba954122a0c8.zip | |
remoteproc: fix null pointer dereference on glink only platforms
Currently calling list_del on smd subdev remove path results in
null pointer dereference on glink only platforms. Fix this by
adding safety checks in glink/smd subdev remove paths.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
| -rw-r--r-- | drivers/remoteproc/qcom_common.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/remoteproc/qcom_common.c b/drivers/remoteproc/qcom_common.c index 9e47a147c131..acfc99f82fb8 100644 --- a/drivers/remoteproc/qcom_common.c +++ b/drivers/remoteproc/qcom_common.c @@ -75,6 +75,9 @@ EXPORT_SYMBOL_GPL(qcom_add_glink_subdev); */ void qcom_remove_glink_subdev(struct rproc *rproc, struct qcom_rproc_glink *glink) { + if (!glink->node) + return; + rproc_remove_subdev(rproc, &glink->subdev); of_node_put(glink->node); } @@ -165,6 +168,9 @@ EXPORT_SYMBOL_GPL(qcom_add_smd_subdev); */ void qcom_remove_smd_subdev(struct rproc *rproc, struct qcom_rproc_subdev *smd) { + if (!smd->node) + return; + rproc_remove_subdev(rproc, &smd->subdev); of_node_put(smd->node); } |