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    DateMon, 27 Nov 2006 13:56:24 +0900
    FromAkinobu Mita <>
    Subject[PATCH] futex: init error ckeck
    This patch checks register_filesystem() and kern_mount() return
    values.
    
    Cc: Ingo Molnar <mingo@redhat.com>
    Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
    
    ---
     kernel/futex.c |   10 ++++++++--
     1 file changed, 8 insertions(+), 2 deletions(-)
    Index: work-fault-inject/kernel/futex.c
    ===================================================================
    --- work-fault-inject.orig/kernel/futex.c
    +++ work-fault-inject/kernel/futex.c
    @@ -1857,10 +1857,16 @@ static struct file_system_type futex_fs_
     
     static int __init init(void)
     {
    -	unsigned int i;
    +	int i = register_filesystem(&futex_fs_type);
    +
    +	if (i)
    +		return i;
     
    -	register_filesystem(&futex_fs_type);
     	futex_mnt = kern_mount(&futex_fs_type);
    +	if (IS_ERR(futex_mnt)) {
    +		unregister_filesystem(&futex_fs_type);
    +		return PTR_ERR(futex_mnt);
    +	}
     
     	for (i = 0; i < ARRAY_SIZE(futex_queues); i++) {
     		INIT_LIST_HEAD(&futex_queues[i].chain);
    -
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