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    Subject[PATCH 5.14 262/849] media: imx-jpeg: Fix possible null pointer dereference
    Date
    From: Mirela Rabulea <mirela.rabulea@nxp.com>

    [ Upstream commit 83f5f0633b156c636f5249d3c10f2a9423dd4c96 ]

    Found by Coverity scan.

    Signed-off-by: Mirela Rabulea <mirela.rabulea@nxp.com>
    Reviewed-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
    Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
    Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/media/platform/imx-jpeg/mxc-jpeg.c | 4 ++++
    1 file changed, 4 insertions(+)

    diff --git a/drivers/media/platform/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/imx-jpeg/mxc-jpeg.c
    index 755138063ee61..33e7604271cdf 100644
    --- a/drivers/media/platform/imx-jpeg/mxc-jpeg.c
    +++ b/drivers/media/platform/imx-jpeg/mxc-jpeg.c
    @@ -575,6 +575,10 @@ static irqreturn_t mxc_jpeg_dec_irq(int irq, void *priv)

    dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
    src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
    + if (!dst_buf || !src_buf) {
    + dev_err(dev, "No source or destination buffer.\n");
    + goto job_unlock;
    + }
    jpeg_src_buf = vb2_to_mxc_buf(&src_buf->vb2_buf);

    if (dec_ret & SLOT_STATUS_ENC_CONFIG_ERR) {
    --
    2.33.0


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