diff options
Diffstat (limited to 'libdiskfs/io-readable.c')
| -rw-r--r-- | libdiskfs/io-readable.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/libdiskfs/io-readable.c b/libdiskfs/io-readable.c index 3bb93879..1d9dd573 100644 --- a/libdiskfs/io-readable.c +++ b/libdiskfs/io-readable.c @@ -1,5 +1,5 @@ /* - Copyright (C) 1994 Free Software Foundation + Copyright (C) 1994, 1995 Free Software Foundation This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as @@ -36,7 +36,10 @@ diskfs_S_io_readable (struct protid *cred, mutex_lock (&np->lock); ioserver_get_conch (&np->conch); - *amount = np->dn_stat.st_size - cred->po->filepointer; + if (np->dn_stat.st_size > cred->po->filepointer) + *amount = np->dn_stat.st_size - cred->po->filepointer; + else + *amount = 0; mutex_unlock (&np->lock); return 0; |