Author: jonathan
Date: Thu Aug 11 13:29:59 2011
New Revision: 224781
URL: http://svn.freebsd.org/changeset/base/224781
Log:
Only call fdclose() on successfully-opened FDs.
Since kern_openat() now uses falloc_noinstall() and finstall() separately,
there are cases where we could get to cleanup code without ever creating
a file descriptor. In those cases, we should not call fdclose() on FD -1.
Approved by: re (kib), mentor (rwatson)
Sponsored by: Google Inc
Modified:
head/sys/kern/vfs_syscalls.c
Modified: head/sys/kern/vfs_syscalls.c
==============================================================================
--- head/sys/kern/vfs_syscalls.c Thu Aug 11 13:15:11 2011
(r224780)
+++ head/sys/kern/vfs_syscalls.c Thu Aug 11 13:29:59 2011
(r224781)
@@ -1116,7 +1116,8 @@ kern_openat(struct thread *td, int fd, c
* Clean up the descriptor, but only if another thread hadn't
* replaced or closed it.
*/
- fdclose(fdp, fp, indx, td);
+ if (indx != -1)
+ fdclose(fdp, fp, indx, td);
fdrop(fp, td);
if (error == ERESTART)
@@ -1185,7 +1186,8 @@ success:
bad:
VFS_UNLOCK_GIANT(vfslocked);
bad_unlocked:
- fdclose(fdp, fp, indx, td);
+ if (indx != -1)
+ fdclose(fdp, fp, indx, td);
fdrop(fp, td);
td->td_retval[0] = -1;
return (error);
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