Shuah Khan wrote: > I analyzed all calls to dma_map_single() and dma_map_page() in the > kernel, to see if callers check for mapping errors, before using the > returned address. > > The goal of this analysis is to find drivers that currently do not > check dma mapping errors, and fix them. > > I documented the results of this analysis: > > http://linuxdriverproject.org/mediawiki/index.php/DMA_Mapping_Error_Analysis
> File Name # of calls Status > drivers/firewire/core-iso.c 1 Unmap Broken > drivers/firewire/ohci.c 1 Unmap Broken In ohci.c, ar_context_release() takes care of cleanup. In core-iso.c, on failure, the callers are responsible to call fw_iso_buffer_destroy() eventually. (ioctl_create_iso_context() doesn't do this correctly if it's called multiple times.) Regards, Clemens -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
