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authorAlan Stern <stern@rowland.harvard.edu>2008-08-12 14:34:14 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2008-08-21 10:26:37 -0700
commit5096aedcd2eb70fbea83f09281f97f9ec973d9de (patch)
treea1ed2e8486837fd2f0751802e7602c33f3b9fe8c /drivers/usb/host
parentf2189c477c986db47ac7f9cc32d05f6df18bfe9e (diff)
USB: Don't rebind before "complete" callback
This patch (as1130) fixes an incompatibility between the new PM infrastructure and USB power management. We are not allowed to call drivers' probe routines during a system sleep transition between the "prepare" and "complete" callbacks, but that's exactly what we do when a driver doesn't have full suspend/resume support. Such drivers are unbound during the "suspend" call and reprobed during the "resume" call. The patch causes the reprobe step to be skipped if the "complete" callback hasn't been issued yet, i.e., if the interface's dev.power.status field is not equal to DPM_ON. Thus during the "resume" callback nothing bad will happen, and during the final "complete" callback the reprobing will occur as desired. This fixes the problem reported in Bugzilla #11263. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host')
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