media: coda: assert bitstream mutex is locked in coda_fill_bitstream

coda_fill_bitstream() must be called under the bitstream mutex.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

diff --git a/drivers/media/platform/chips-media/coda-bit.c b/drivers/media/platform/chips-media/coda-bit.c
index c484c00..804fc84 100644 (file)
--- a/drivers/media/platform/chips-media/coda-bit.c
+++ b/drivers/media/platform/chips-media/coda-bit.c
@@ -326,6 +326,8 @@ void coda_fill_bitstream(struct coda_ctx *ctx, struct list_head *buffer_list)
        struct coda_buffer_meta *meta;
        u32 start;
 
+       lockdep_assert_held(&ctx->bitstream_mutex);
+
        if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG)
                return;