Fixed thread safety of signal handling.

[libucw.git] / images / io-libungif.c

diff --git a/images/io-libungif.c b/images/io-libungif.c
index 9e19de266d2e1343f5a49623e9d5340bdfe213b7..b3e8960a39fc6b1d3adff9c3df675425df65774d 100644 (file)
--- a/images/io-libungif.c
+++ b/images/io-libungif.c
@@ -191,7 +191,7 @@ libungif_read_data(struct image_io *io)
              }
 #        define DO_ROW_END do{ \
              walk_row_start += dein_step; \
-             if (walk_row_start >= img_end) \
+             while (walk_row_start >= img_end) \
                { uns n = dein_next >> 1; walk_row_start = rdi.image->pixels + n, dein_step = dein_next; dein_next = n; } \
            }while(0)
 #        define IMAGE_WALK_PREFIX(x) walk_##x