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media: coda: Add check for kmalloc

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As the kmalloc may return NULL pointer,
it should be better to check the return value
in order to avoid NULL poineter dereference,
same as the others.

Fixes: cb1d3a3363 ("[media] coda: add CODA7541 JPEG support")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Jiasheng Jiang 2022-11-17 15:02:36 +08:00 committed by Hans Verkuil
parent 6b8082238f
commit 6e5e5defdb
1 changed files with 8 additions and 2 deletions
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10
drivers/media/platform/chips-media/coda-bit.c
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@ -1084,10 +1084,16 @@ static int coda_start_encoding(struct coda_ctx *ctx)
}
if (dst_fourcc == V4L2_PIX_FMT_JPEG) {
if (!ctx->params.jpeg_qmat_tab[0])
if (!ctx->params.jpeg_qmat_tab[0]) {
ctx->params.jpeg_qmat_tab[0] = kmalloc(64, GFP_KERNEL);
if (!ctx->params.jpeg_qmat_tab[1])
if (!ctx->params.jpeg_qmat_tab[0])
return -ENOMEM;
}
if (!ctx->params.jpeg_qmat_tab[1]) {
ctx->params.jpeg_qmat_tab[1] = kmalloc(64, GFP_KERNEL);
if (!ctx->params.jpeg_qmat_tab[1])
return -ENOMEM;
}
coda_set_jpeg_compression_quality(ctx, ctx->params.jpeg_quality);
}