coda: do not grab an uninitialized fd when the open upcall returns an error

When open fails the fd in the response is uninitialized and we ended up taking
a reference on the file struct and never released it.

Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c
index 5faacdb1a479..1651b918219a 100644
--- a/fs/coda/upcall.c
+++ b/fs/coda/upcall.c
@@ -251,12 +251,12 @@ int venus_open(struct super_block *sb, struct CodaFid *fid,
         insize = SIZE(open_by_fd);
         UPARG(CODA_OPEN_BY_FD);
 
-        inp->coda_open.VFid = *fid;
-        inp->coda_open.flags = flags;
+        inp->coda_open_by_fd.VFid = *fid;
+        inp->coda_open_by_fd.flags = flags;
 
-        error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
-
-        *fh = outp->coda_open_by_fd.fh;
+        error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+        if (!error)
+                *fh = outp->coda_open_by_fd.fh;
 
         CODA_FREE(inp, insize);
         return error;