usb-linux: Don't do perror when errno is not set
commit61c1117f08f4ed6f7e5cfa59cc9e02cf19c8f92d
authorHans de Goede <hdegoede@redhat.com>
Tue, 31 May 2011 09:35:20 +0000 (31 11:35 +0200)
committerGerd Hoffmann <kraxel@redhat.com>
Tue, 14 Jun 2011 10:56:49 +0000 (14 12:56 +0200)
tree5d2e0b260fe150cedbc5cd1e761b39837eb6f7fc
parentf264cfbf4a010e1be879bf2e62d323443989d72f
usb-linux: Don't do perror when errno is not set

Note that "op" also is not set, so before this change these error paths
would feed NULL to perror.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
usb-linux.c