low-level keyboard input (not hooked up to /dev yet)

fix acquire() to cli() *before* incrementing nlock
make T_SYSCALL a trap gate, not an interrupt gate
sadly, various crashes if you hold down a keyboard key...

1 files changed, 1 insertions, 0 deletions

diff --git a/fs.c b/fs.c
index 7e54876..126c18f 100644
--- a/fs.c
+++ b/fs.c
@@ -329,6 +329,7 @@ writei(struct inode *ip, void *addr, uint off, uint n)
     return r;
   } else {
     panic ("writei: unknown type\n");
+    return 0;
   }
 }