afs: Fix double inc of vnode->cb_break
When __afs_break_callback() clears the CB_PROMISED flag, it increments vnode->cb_break to trigger a future refetch of the status and callback - however it also calls afs_clear_permits(), which also increments vnode->cb_break. Fix this by removing the increment from afs_clear_permits(). Whilst we're at it, fix the conditional call to afs_put_permits() as the function checks to see if the argument is NULL, so the check is redundant. Fixes: be080a6f ("afs: Overhaul permit caching"); Signed-off-by:David Howells <dhowells@redhat.com>
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c7226e40
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