Hi Dan,
On Mon, Feb 17, 2020 at 3:41 PM Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote:
> The caller is already holding the lock so this will deadlock.
>
> Fixes: 0b58828c923e ("DMAENGINE: COH 901 318 remove irq counting")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> ---
> This is the second double lock bug found using static analysis. The
> previous one was commit 627469e4445b ("dmaengine: coh901318: Fix a
> double-lock bug").
>
> The fact that this has been broken for ten years suggests that no one
> has the hardware.
Or this only runs CONFIG_SMP=n kernels?
This seems to be used in arch/arm/boot/dts/ste-u300.dts only, and
CONFIG_ARCH_U300 is a ARCH_MULTI_V5 platform, which looks like
it doesn't support SMP?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
