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authorThierry Escande <thierry.escande@collabora.com>2017-06-30 16:15:43 +0200
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2017-07-26 14:30:29 +0200
commit14a2de14dc0619bf926c56cd12e29e0245d12abc (patch)
treea98bec9750964430cab926855392b4c7950dacb9 /drivers/media
parentmedia: s5p-jpeg: Handle parsing error in s5p_jpeg_parse_hdr() (diff)
downloadlinux-14a2de14dc0619bf926c56cd12e29e0245d12abc.tar.xz
linux-14a2de14dc0619bf926c56cd12e29e0245d12abc.zip
media: s5p-jpeg: Don't use temporary structure in s5p_jpeg_buf_queue
If s5p_jpeg_parse_hdr() fails to parse the JPEG header, the passed s5p_jpeg_q_data structure is not modified so there is no need to use a temporary structure and the field-by-field copy can be avoided. Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Acked-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/platform/s5p-jpeg/jpeg-core.c23
1 files changed, 4 insertions, 19 deletions
diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c
index 955cc6e6a2cf..e9ff9773ad32 100644
--- a/drivers/media/platform/s5p-jpeg/jpeg-core.c
+++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c
@@ -2500,9 +2500,9 @@ static void s5p_jpeg_buf_queue(struct vb2_buffer *vb)
if (ctx->mode == S5P_JPEG_DECODE &&
vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
- struct s5p_jpeg_q_data tmp, *q_data;
+ struct s5p_jpeg_q_data *q_data;
- ctx->hdr_parsed = s5p_jpeg_parse_hdr(&tmp,
+ ctx->hdr_parsed = s5p_jpeg_parse_hdr(&ctx->out_q,
(unsigned long)vb2_plane_vaddr(vb, 0),
min((unsigned long)ctx->out_q.size,
vb2_get_plane_payload(vb, 0)), ctx);
@@ -2511,24 +2511,9 @@ static void s5p_jpeg_buf_queue(struct vb2_buffer *vb)
return;
}
- q_data = &ctx->out_q;
- q_data->w = tmp.w;
- q_data->h = tmp.h;
- q_data->sos = tmp.sos;
- memcpy(q_data->dht.marker, tmp.dht.marker,
- sizeof(tmp.dht.marker));
- memcpy(q_data->dht.len, tmp.dht.len, sizeof(tmp.dht.len));
- q_data->dht.n = tmp.dht.n;
- memcpy(q_data->dqt.marker, tmp.dqt.marker,
- sizeof(tmp.dqt.marker));
- memcpy(q_data->dqt.len, tmp.dqt.len, sizeof(tmp.dqt.len));
- q_data->dqt.n = tmp.dqt.n;
- q_data->sof = tmp.sof;
- q_data->sof_len = tmp.sof_len;
-
q_data = &ctx->cap_q;
- q_data->w = tmp.w;
- q_data->h = tmp.h;
+ q_data->w = ctx->out_q.w;
+ q_data->h = ctx->out_q.h;
/*
* This call to jpeg_bound_align_image() takes care of width and