RE: goofy mtd m25p80 patches in GIT ...

Chen Gong-B11801
2008-10-20T07:33:00Z

>
> Second:
>
>
> http://git.kernel.org/?p=linux/kernel/git/dwmw2/mtd-2.6.git;a=
> commitdiff;h=75d0ee2202b5740e94e913d8a52f91c6557c4c81
>
> That's just plain wrong ... the original code is correct, but the
> patch changed it to be incorrect. (DMA from the stack is never
> legal.)
>
> Just revert this one entirely.
>
>
I know spi_write_then_read is different from spi_write, but here n_rx & rxbuf are
both NULL, which means no real read operation are executed. Would you please
give me more explanation for potential hazard ?