--- a/libmng-2.0.3/libmng_zlib.c	2012-07-30 00:56:34.000000000 +0530
+++ b/libmng-2.0.3/libmng_zlib.c	2015-11-03 12:47:28.588835966 +0530
@@ -370,22 +370,22 @@
 #ifdef MNG_INCLUDE_JNG
           if (pData->bHasJHDR)         /* is JNG alpha-channel ? */
           {                            /* just store in object ? */
-            if ((!iRslt) && (pData->fStorerow))
+            if (pData->fStorerow)
               iRslt = ((mng_storerow)pData->fStorerow)     (pData);
           }
           else
 #endif /* MNG_INCLUDE_JNG */
           {                            /* process this row */
-            if ((!iRslt) && (pData->fProcessrow))
+            if (pData->fProcessrow)
               iRslt = ((mng_processrow)pData->fProcessrow) (pData);
                                        /* store in object ? */
-            if ((!iRslt) && (pData->fStorerow))
+            if (pData->fStorerow)
               iRslt = ((mng_storerow)pData->fStorerow)     (pData);
                                        /* color correction ? */
-            if ((!iRslt) && (pData->fCorrectrow))
+            if (pData->fCorrectrow)
               iRslt = ((mng_correctrow)pData->fCorrectrow) (pData);
                                        /* slap onto canvas ? */
-            if ((!iRslt) && (pData->fDisplayrow))
+            if (pData->fDisplayrow)
             {
               iRslt = ((mng_displayrow)pData->fDisplayrow) (pData);