Fix two errors reported by smatch:
drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c:292
mdp_probe() error: we previously assumed 'mdp' could be null
drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c:460
mdp_cmdq_send() error: we previously assumed 'cmd' could be null
Also, avoid warnings reported by smatch:
drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c:872
mdp_comp_create() warn: passing devm_ allocated variable to kfree. 'comp'
Signed-off-by: Moudy Ho <[email protected]>
--
This patch is based on hverkuil/media_tree.git tags/br-v6.1c
---
drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c | 2 +-
drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c | 2 +-
drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c | 3 ++-
3 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c
index 29f6c1cd3de7..86c054600a08 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c
@@ -457,7 +457,7 @@ int mdp_cmdq_send(struct mdp_dev *mdp, struct mdp_cmdq_param *param)
kfree(path);
atomic_dec(&mdp->job_count);
wake_up(&mdp->callback_wq);
- if (cmd->pkt.buf_size > 0)
+ if (cmd && cmd->pkt.buf_size > 0)
mdp_cmdq_pkt_destroy(&cmd->pkt);
kfree(comps);
kfree(cmd);
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c
index e62abf3587bf..d1064b149ef9 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c
@@ -869,7 +869,7 @@ static struct mdp_comp *mdp_comp_create(struct mdp_dev *mdp,
ret = mdp_comp_init(mdp, node, comp, id);
if (ret) {
- kfree(comp);
+ devm_kfree(comp);
return ERR_PTR(ret);
}
mdp->comp[id] = comp;
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
index cde59579b7ae..c413e59d4286 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
@@ -289,7 +289,8 @@ static int mdp_probe(struct platform_device *pdev)
mdp_comp_destroy(mdp);
err_return:
for (i = 0; i < MDP_PIPE_MAX; i++)
- mtk_mutex_put(mdp->mdp_mutex[i]);
+ if (mdp)
+ mtk_mutex_put(mdp->mdp_mutex[i]);
kfree(mdp);
dev_dbg(dev, "Errno %d\n", ret);
return ret;
--
2.18.0