Eliminate uninitialized value

Credit OSS Fuzz

diff --git a/coders/wpg.c b/coders/wpg.c
index 0583842082225d95744db1247e44ceb6602e79ce..eb4f54766ae2cb299f587c1c5621601cd5ffbc81 100644 (file)
--- a/coders/wpg.c
+++ b/coders/wpg.c
@@ -1391,7 +1391,12 @@ static Image *ReadWPGImage(const ImageInfo *image_info,
 
                     for (i=0; i< (ssize_t) image->rows; i++)
                     {
-                      (void) ReadBlob(image,ldblk,BImgBuff);
+                      ssize_t
+                        count;
+
+                      count=ReadBlob(image,(size_t) ldblk,BImgBuff);
+                      if (count != ldblk)
+                        break;
                       if (InsertRow(image,BImgBuff,i,bpp,exception) == MagickFalse)
                         {
                           if(BImgBuff)