From: Thomas Pugliese Date: Thu, 8 Aug 2013 17:11:45 +0000 (-0500) Subject: wusbcore: fix root hub hub_status_data to only return > 0 if status has actually... X-Git-Tag: v3.12-rc1~186^2~90 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=467d296f47731bcba578cfdea8416b4c152c4f1b;p=pandora-kernel.git wusbcore: fix root hub hub_status_data to only return > 0 if status has actually changed The hub_status_data function on the wireless USB root hub controller (wusbhc_rh_status_data) always returns a positive value even if no ports have changed. This patch updates wusbhc_rh_status_data to only return a positive value if the root hub status needs to be queried. The current implementation can also leave the upper bits of the port bitmap uninitialized if wusbhc->ports_max is not one less than an even multiple of 8. This patch fixes that as well by initializing the buffer to 0. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman --- Reading git-diff-tree failed