On 02/08/2018 08:22 PM, Marek Vasut wrote: > On 02/08/2018 03:46 PM, Marc Kleine-Budde wrote: >> On 02/08/2018 07:47 AM, Heiko Schocher wrote: >>> the driver reads in the ISR first the IRQpending register, >>> and clears after that in a write *all* bits in it. >>> >>> It could happen that the isr register raise bits between >>> this 2 register accesses, which leads in lost bits ... >>> >>> In case it clears "TX message sent successfully", the driver >>> never sends any Tx data, and buffers to userspace run over. >>> >>> Fixed this: >>> clear only the bits in the IRQpending register, the >>> driver had read. >>> >>> Signed-off-by: Heiko Schocher <h...@denx.de> >>> Reviewed-by: Marek Vasut <ma...@denx.de> >> >> Applied both to linux-can. > > Can you also apply them to stable, so they get into 4.9.x etc ?
I've already added stable on Cc, so they will be picked up by the stable maintainers. Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
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