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| author | Colin Ian King <colin.king@canonical.com> | 2017-09-03 13:46:14 +0100 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2017-09-04 10:51:49 -0700 |
| commit | 906cf29cfab5806d32c2a274f86f3d076c0a48be (patch) | |
| tree | e41dbbb37489e0b0e0981239aba71e9b78eb7f4e | |
| parent | 2b41d6c8e6967b4243e5b721aa4d778eb6f7d4e7 (diff) | |
| download | op-kernel-dev-906cf29cfab5806d32c2a274f86f3d076c0a48be.zip op-kernel-dev-906cf29cfab5806d32c2a274f86f3d076c0a48be.tar.gz | |
rpmsg: glink: fix null pointer dereference on a null intent
In the case where glink->intentless is true and the call
to qcom_glink_tx fails then we have a condition where ret is
non-zero and intent is null, causing a null pointer deference
when setting intent->in_use to false. Add an extra check to
only dereference intent if intent is non-null.
Detected by: CoverityScan CID#1455247 ("Explicit null dereferenced")
Fixes: 88c6060f5a7f ("rpmsg: glink: Handle remote rx done command")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
| -rw-r--r-- | drivers/rpmsg/qcom_glink_native.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c index 6660682..8bc0d04 100644 --- a/drivers/rpmsg/qcom_glink_native.c +++ b/drivers/rpmsg/qcom_glink_native.c @@ -1264,7 +1264,7 @@ static int __qcom_glink_send(struct glink_channel *channel, ret = qcom_glink_tx(glink, &req, sizeof(req), data, len, wait); /* Mark intent available if we failed */ - if (ret) + if (ret && intent) intent->in_use = false; return ret; |
