[RFC] DMA mapping error check analysis

Shuah Khan shuah.khan at hp.com
Fri Sep 7 15:53:20 UTC 2012

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:


Please review and give me feedback on the analysis and the proposed
next steps.

-- Shuah

More information about the devel mailing list