[patch] Staging: intel_sst: fix memory leak

[Dan Carpenter <error27@gmail.com>]

The original code set "str_info->decode_ibuf" to NULL so the kfree() is
no-op.

Signed-off-by: Dan Carpenter <error27@gmail.com>
---
This is a static checker thing.  I don't have the hardware to test this
myself so please check it carefully.

diff --git a/drivers/staging/intel_sst/intel_sst_stream_encoded.c b/drivers/staging/intel_sst/intel_sst_stream_encoded.c
index d4e94f1..09993d6 100644
--- a/drivers/staging/intel_sst/intel_sst_stream_encoded.c
+++ b/drivers/staging/intel_sst/intel_sst_stream_encoded.c
@@ -1270,7 +1270,7 @@ finish:
 	dbufs->output_bytes_produced = total_output;
 	str_info->status = str_info->prev;
 	str_info->prev = STREAM_DECODE;
-	str_info->decode_ibuf = NULL;
 	kfree(str_info->decode_ibuf);
+	str_info->decode_ibuf = NULL;
 	return retval;
 }