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| author | Colin Ian King | 2018-09-27 23:36:27 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2018-11-13 20:08:55 +0100 |
| commit | 9632c0339b1217e280f693161498c3152c9c7bb3 (patch) | |
| tree | 7086c0913c8ea1dc127b41106d288b4348878a69 | |
| parent | arm64: lse: remove -fcall-used-x0 flag (diff) | |
| download | kernel-qcow2-linux-9632c0339b1217e280f693161498c3152c9c7bb3.tar.gz kernel-qcow2-linux-9632c0339b1217e280f693161498c3152c9c7bb3.tar.xz kernel-qcow2-linux-9632c0339b1217e280f693161498c3152c9c7bb3.zip | |
rpmsg: smd: fix memory leak on channel create
commit 940c620d6af8fca7d115de40f19870fba415efac upstream.
Currently a failed allocation of channel->name leads to an
immediate return without freeing channel. Fix this by setting
ret to -ENOMEM and jumping to an exit path that kfree's channel.
Detected by CoverityScan, CID#1473692 ("Resource Leak")
Fixes: 53e2822e56c7 ("rpmsg: Introduce Qualcomm SMD backend")
Cc: stable@vger.kernel.org
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/rpmsg/qcom_smd.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c index 8da83a4ebadc..b2e5a6abf7d5 100644 --- a/drivers/rpmsg/qcom_smd.c +++ b/drivers/rpmsg/qcom_smd.c @@ -1122,8 +1122,10 @@ static struct qcom_smd_channel *qcom_smd_create_channel(struct qcom_smd_edge *ed channel->edge = edge; channel->name = kstrdup(name, GFP_KERNEL); - if (!channel->name) - return ERR_PTR(-ENOMEM); + if (!channel->name) { + ret = -ENOMEM; + goto free_channel; + } spin_lock_init(&channel->tx_lock); spin_lock_init(&channel->recv_lock); @@ -1173,6 +1175,7 @@ static struct qcom_smd_channel *qcom_smd_create_channel(struct qcom_smd_edge *ed free_name_and_channel: kfree(channel->name); +free_channel: kfree(channel); return ERR_PTR(ret); |