From dc15ae14e97ee9d5ed740cbb0b94996076d8b37e Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Thu, 10 Nov 2005 19:08:00 -0500 Subject: [PATCH] VFS: Fix memory leak with file leases The patch http://linux.bkbits.net:8080/linux-2.6/diffs/fs/locks.c@1.70??nav=index.html introduced a pretty nasty memory leak in the lease code. When freeing the lease, the code in locks_delete_lock() will correctly clean up the fasync queue, but when we return to fcntl_setlease(), the freed fasync entry will be reinstated. This patch ensures that we skip the call to fasync_helper() when we're freeing up the lease. Signed-off-by: J. Bruce Fields Signed-off-by: Trond Myklebust --- fs/locks.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs') diff --git a/fs/locks.c b/fs/locks.c index a1e8b2248014..600d1fbe3571 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -1430,7 +1430,7 @@ int fcntl_setlease(unsigned int fd, struct file *filp, long arg) lock_kernel(); error = __setlease(filp, arg, &flp); - if (error) + if (error || arg == F_UNLCK) goto out_unlock; error = fasync_helper(fd, filp, 1, &flp->fl_fasync); -- cgit v1.2.3