libc/blkoutstream: Minor style fix
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
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@ -148,15 +148,15 @@ static int blkoutstream_puts(FAR struct lib_outstream_s *this,
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void lib_blkoutstream_close(FAR struct lib_blkoutstream_s *stream)
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{
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if (stream)
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if (stream != NULL)
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{
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if (stream->inode)
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if (stream->inode != NULL)
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{
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close_blockdriver(stream->inode);
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stream->inode = NULL;
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}
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if (stream->cache)
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if (stream->cache != NULL)
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{
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lib_free(stream->cache);
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stream->cache = NULL;
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