On Tue, May 28, 2013 at 05:51:44PM +0800, Wei Yongjun wrote: > From: Wei Yongjun <yongjun_wei at trendmicro.com.cn> > > Fix to return -ENOMEM in the kmap() error handling case > instead of 0, as done elsewhere in this function. kmap() can fail? It is either translated to page_address() or kmap_high() (on x86), neither of which may return NULL. However, only kmap_atomic() is documented as being guaranteed to return a valid value. If we could have a similar definitive statement for kmap(), we can then cleanup quite a bit of redundant error handling. -Chris -- Chris Wilson, Intel Open Source Technology Centre
