modprobe returns 0 upon -EEXIST from insmod

[Phil Sutter <phil@xxxxxx>]

Hi,

I admittedly didn't fully analyze the cause, but on my system a call to:

# insmod /lib/module/$(uname -r)/kernel/net/netfilter/nf_conntrack_ftp.ko

fails with -EEXIST (due to a previous call to 'nfct add helper ftp inet
tcp'). A call to:

# modprobe nf_conntrack_ftp

though returns 0 even though module loading fails. Is there a bug in
modprobe error status handling?

Cheers, Phil