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s5p-jpeg: don't return a random width/height

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commit a16e37726c upstream.

Gcc 7.1 complains about:

drivers/media/platform/s5p-jpeg/jpeg-core.c: In function 's5p_jpeg_parse_hdr.isra.9':
drivers/media/platform/s5p-jpeg/jpeg-core.c:1207:12: warning: 'width' may be used uninitialized in this function [-Wmaybe-uninitialized]
  result->w = width;
  ~~~~~~~~~~^~~~~~~
drivers/media/platform/s5p-jpeg/jpeg-core.c:1208:12: warning: 'height' may be used uninitialized in this function [-Wmaybe-uninitialized]
  result->h = height;
  ~~~~~~~~~~^~~~~~~~

Indeed the code would allow it to return a random value (although
it shouldn't happen, in practice). So, explicitly set both to zero,
just in case.

Acked-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mauro Carvalho Chehab
2017-05-18 10:40:00 -03:00
committed by Greg Kroah-Hartman
parent 63d32e8af0
commit 60813b6a2a
1 changed files with 4 additions and 4 deletions
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8
drivers/media/platform/s5p-jpeg/jpeg-core.c
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@@ -1099,10 +1099,10 @@ static bool s5p_jpeg_parse_hdr(struct s5p_jpeg_q_data *result,
struct s5p_jpeg_ctx *ctx)
{
int c, components = 0, notfound, n_dht = 0, n_dqt = 0;
unsigned int height, width, word, subsampling = 0, sos = 0, sof = 0,
sof_len = 0;
unsigned int dht[S5P_JPEG_MAX_MARKER], dht_len[S5P_JPEG_MAX_MARKER],
dqt[S5P_JPEG_MAX_MARKER], dqt_len[S5P_JPEG_MAX_MARKER];
unsigned int height = 0, width = 0, word, subsampling = 0;
unsigned int sos = 0, sof = 0, sof_len = 0;
unsigned int dht[S5P_JPEG_MAX_MARKER], dht_len[S5P_JPEG_MAX_MARKER];
unsigned int dqt[S5P_JPEG_MAX_MARKER], dqt_len[S5P_JPEG_MAX_MARKER];
long length;
struct s5p_jpeg_buffer jpeg_buffer;