NET: cdc-phonet, handle empty phonet header
commit54fe0be52e948e04f5dd9ce57db40e11f7dad6de
authorJiri Slaby <jslaby@suse.cz>
Sun, 13 Mar 2011 06:54:31 +0000 (13 06:54 +0000)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 22 Apr 2011 15:49:57 +0000 (22 08:49 -0700)
tree9a2febd129257c8f6cbde9e3f432844df63a7f3c
parent28d0ddd2e147872c4e57cb07fbeb553609c919e7
NET: cdc-phonet, handle empty phonet header

commit 468c3f924f043cad7a04f4f4d5224a2c9bc886c1 upstream.

Currently, for N 5800 XM I get:
cdc_phonet: probe of 1-6:1.10 failed with error -22

It's because phonet_header is empty. Extra altsetting looks like
there:
E 05 24 00 01 10 03 24 ab 05 24 06 0a 0b 04 24 fd  .$....$..$....$.
E 00                                               .

I don't see the header used anywhere so just check if the phonet
descriptor is there, not the structure itself.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Cc: David S. Miller <davem@davemloft.net>
Acked-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/net/usb/cdc-phonet.c