use one buffer only

1 files changed, 5 insertions, 8 deletions

diff --git a/src/pnmlcms.c b/src/pnmlcms.c
index f139b0f..0a8fdac 100644
--- a/src/pnmlcms.c
+++ b/src/pnmlcms.c
@@ -125,20 +125,17 @@ pam_transform(FILE *in_fp, FILE *out_fp,
 {
 	int row, col;
 	int nbytes = in_pnm->maxval == 65535?2:1;
-	char *in_buf = malloc(in_pnm->width * nbytes * 3);
-	char *out_buf = malloc(in_pnm->width * nbytes * 3);
+	char *buf = malloc(in_pnm->width * nbytes * 3);
 
 	for (row = 0; row < in_pnm->height; row++) {
-		fread(in_buf, in_pnm->width, nbytes * 3, in_fp);
+		fread(buf, in_pnm->width, nbytes * 3, in_fp);
 
-		cmsDoTransform(*hTransform, in_buf, out_buf, in_pnm->width);
+		cmsDoTransform(*hTransform, buf, buf, in_pnm->width);
 
-		fwrite(out_buf, in_pnm->width, nbytes * 3, out_fp);
+		fwrite(buf, in_pnm->width, nbytes * 3, out_fp);
 	}
 
-	free(in_buf);
-	free(out_buf);
-
+	free(buf);
 	return 0;
 }