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media: coda: jpeg: add NULL check after kmalloc

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Fixes coccicheck warning:

./drivers/media/platform/coda/coda-jpeg.c:331:3-31:
	alloc with no test, possible model on line 354

Add NULL check after kmalloc.

Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Chen Zhou 2020-05-09 04:07:11 +02:00 committed by Mauro Carvalho Chehab
parent 6fce59ac71
commit 2017172314
1 changed files with 4 additions and 1 deletions
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5
drivers/media/platform/coda/coda-jpeg.c
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@ -327,8 +327,11 @@ int coda_jpeg_decode_header(struct coda_ctx *ctx, struct vb2_buffer *vb)
"only 8-bit quantization tables supported\n");
continue;
}
if (!ctx->params.jpeg_qmat_tab[i])
if (!ctx->params.jpeg_qmat_tab[i]) {
ctx->params.jpeg_qmat_tab[i] = kmalloc(64, GFP_KERNEL);
if (!ctx->params.jpeg_qmat_tab[i])
return -ENOMEM;
}
memcpy(ctx->params.jpeg_qmat_tab[i],
quantization_tables[i].start, 64);
}