linux-kernel - [PATCH] Fix memory leaks in wave5_vpu_open_enc() and wave5_vpu_open

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Date:   Mon,  4 Dec 2023 17:16:49 +0800
From:   Zeng Chi <zengchi@...inos.cn>
To:     nas.chung@...psnmedia.com, jackson.lee@...psnmedia.com,
        mchehab@...nel.org, sebastian.fricke@...labora.com,
        nicolas.dufresne@...labora.com, hverkuil-cisco@...all.nl,
        bob.beckett@...labora.com
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        zengchi@...inos.cn
Subject: [PATCH] Fix memory leaks in wave5_vpu_open_enc() and wave5_vpu_open_dec()

This patch fixes memory leaks on error escapes in wave5_vpu_open_enc()
and wave5_vpu_open_dec().

Fixes: 9707a6254a8a ("media: chips-media: wave5: Add the v4l2 layer")
Signed-off-by: Zeng Chi <zengchi@...inos.cn>
---
 drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c | 5 +++--
 drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c | 5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c b/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
index 8b1417ece96e..b0a045346bb7 100644
--- a/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
+++ b/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
@@ -1802,9 +1802,10 @@ static int wave5_vpu_open_dec(struct file *filp)
 	spin_lock_init(&inst->state_spinlock);
 
 	inst->codec_info = kzalloc(sizeof(*inst->codec_info), GFP_KERNEL);
-	if (!inst->codec_info)
+	if (!inst->codec_info) {
+		kfree(inst);
 		return -ENOMEM;
-
+	}
 	v4l2_fh_init(&inst->v4l2_fh, vdev);
 	filp->private_data = &inst->v4l2_fh;
 	v4l2_fh_add(&inst->v4l2_fh);
diff --git a/drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c b/drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c
index f29cfa3af94a..bc94de9ea546 100644
--- a/drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c
+++ b/drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c
@@ -1546,9 +1546,10 @@ static int wave5_vpu_open_enc(struct file *filp)
 	inst->ops = &wave5_vpu_enc_inst_ops;
 
 	inst->codec_info = kzalloc(sizeof(*inst->codec_info), GFP_KERNEL);
-	if (!inst->codec_info)
+	if (!inst->codec_info) {
+		kfree(inst);
 		return -ENOMEM;
-
+	}
 	v4l2_fh_init(&inst->v4l2_fh, vdev);
 	filp->private_data = &inst->v4l2_fh;
 	v4l2_fh_add(&inst->v4l2_fh);
-- 
2.25.1