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| author | Alan Stern <stern@rowland.harvard.edu> | 2017-09-21 16:12:01 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-12 11:27:31 +0200 |
| commit | f72264e79ae74c845f9af8e2fdda86075afd0331 (patch) | |
| tree | 8072cb559e258707d20be5cd8053496ba27bc7f3 /include/linux/timerqueue.h | |
| parent | d20fff0b09d9c74584ced0221c8a5eabf7e1423c (diff) | |
USB: gadgetfs: fix copy_to_user while holding spinlock
commit 6e76c01e71551cb221c1f3deacb9dcd9a7346784 upstream.
The gadgetfs driver as a long-outstanding FIXME, regarding a call of
copy_to_user() made while holding a spinlock. This patch fixes the
issue by dropping the spinlock and using the dev->udc_usage mechanism
introduced by another recent patch to guard against status changes
while the lock isn't held.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/timerqueue.h')
0 files changed, 0 insertions, 0 deletions