jpegls: factorize return paths

Conflicts:
	libavcodec/jpeglsdec.c

(cherry picked from commit 4a4107b48944397c914aa39ee16a82fe44db8c4c)

1 files changed, 6 insertions, 5 deletions

diff --git a/libavcodec/jpeglsdec.c b/libavcodec/jpeglsdec.c
index ca0224c906..63bf5cff87 100644
--- a/libavcodec/jpeglsdec.c
+++ b/libavcodec/jpeglsdec.c
@@ -260,7 +260,7 @@ int ff_jpegls_decode_picture(MJpegDecodeContext *s, int near, int point_transfor
     int i, t = 0;
     uint8_t *zero, *last, *cur;
     JLSState *state;
-    int off = 0, stride = 1, width, shift;
+    int off = 0, stride = 1, width, shift, ret = 0;
 
     zero = av_mallocz(s->picture_ptr->linesize[0]);
     last = zero;
@@ -326,9 +326,8 @@ int ff_jpegls_decode_picture(MJpegDecodeContext *s, int near, int point_transfor
         }
     } else if (ilv == 2) { /* sample interleaving */
         av_log(s->avctx, AV_LOG_ERROR, "Sample interleaved images are not supported.\n");
-        av_free(state);
-        av_free(zero);
-        return AVERROR_PATCHWELCOME;
+        ret = AVERROR_PATCHWELCOME;
+        goto end;
     }
 
     if(shift){ /* we need to do point transform or normalize samples */
@@ -356,10 +355,12 @@ int ff_jpegls_decode_picture(MJpegDecodeContext *s, int near, int point_transfor
             }
         }
     }
+
+end:
     av_free(state);
     av_free(zero);
 
-    return 0;
+    return ret;
 }