> > + if (!einfo->buf) { > > + einfo->buf = kzalloc(datalen, GFP_KERNEL | GFP_DMA); > > + if (!einfo->buf) { > > + ret = -ENOMEM; > > + goto exit; > > + } > > + } > > + > > + memcpy(einfo->buf, p->custom_data, datalen); > > It looks like raw data from userspace is being passed on to the > device. Is this sane? Is there already a data format used by other > vibration/feedback devices that should be used here instead and > translated into the form expected by the hardware?
It also seems to be using GFP_DMA not dma_alloc functions which looks a bit odd and certainly isn't portable. ------------------------------------------------------------------------------ Nokia and AT&T present the 2010 Calling All Innovators-North America contest Create new apps & games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev _______________________________________________ spi-devel-general mailing list spi-devel-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/spi-devel-general