USB: don't choose configs with no interfaces
authorAlan Stern <stern@rowland.harvard.edu>
Tue, 20 Apr 2010 14:40:59 +0000 (10:40 -0400)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 30 Apr 2010 16:25:10 +0000 (09:25 -0700)
commit62f9cfa3ece58268b3e92ca59c23b175f86205aa
tree5990f644a00870876cb34f0afea1012215413f47
parentc3baa19b0a9b711b02cec81d9fea33b7b9628957
USB: don't choose configs with no interfaces

This patch (as1372) fixes a bug in the routine that chooses the
default configuration to install when a new USB device is detected.
The algorithm is supposed to look for a config whose first interface
is for a non-vendor-specific class.  But the way it's currently
written, it will also accept a config with no interfaces at all, which
is not very useful.  (Believe it or not, such things do exist.)

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Andrew Victor <avictor.za@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/core/generic.c