devio: change meaning of return from bfree

We need this to keep inode.c sane. As nobody else uses the return code
this *should* be fine.

diff --git a/Kernel/devio.c b/Kernel/devio.c
index 2447606..ebf9437 100644 (file)
--- a/Kernel/devio.c
+++ b/Kernel/devio.c
@@ -93,10 +93,12 @@ int bfree(bufptr bp, uint8_t dirty)
                bp->bf_busy = BF_FREE;
 
        if (dirty > 1) {        /* immediate writeback */
-               if (bdwrite(bp) != BLKSIZE)
+               if (bdwrite(bp) != BLKSIZE) {
                        udata.u_error = EIO;
+                       return -1;
+               }
                bp->bf_dirty = false;
-               return -1;
+               return 0;
        }
        return 0;
 }