Fixes a segfault during resampling when compiled with -DDEBUG.
Fixes all fate-lavr-resample tests with -DDBUG.

CC:[email protected]
---
 libavresample/utils.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/libavresample/utils.c b/libavresample/utils.c
index b79def9..2dd3d06 100644
--- a/libavresample/utils.c
+++ b/libavresample/utils.c
@@ -438,7 +438,8 @@ int attribute_align_arg 
avresample_convert(AVAudioResampleContext *avr,
             resample_out = &output_buffer;
         else
             resample_out = avr->resample_out_buffer;
-        av_dlog(avr, "[resample] %s to %s\n", current_buffer->name,
+        av_dlog(avr, "[resample] %s to %s\n",
+                current_buffer ? current_buffer->name : "null",
                 resample_out->name);
         ret = ff_audio_resample(avr->resample, resample_out,
                                 current_buffer);
-- 
1.7.1

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