[PATCH v3 1/1] bus: mhi: host: Fix up null pointer access in mhi_irq_handler

[Manivannan Sadhasivam]

On Mon, Aug 29, 2022 at 07:20:10PM +0300, Kalle Valo wrote:
> Manivannan Sadhasivam <mani at kernel.org> writes:
> 
> > On Tue, Jul 26, 2022 at 08:53:58PM +0300, Kalle Valo wrote:
> >> Manivannan Sadhasivam <mani at kernel.org> writes:
> >> 
> >> > +ath11k, Kalle
> >> >
> >> > On Fri, Jul 22, 2022 at 11:17:18AM +0800, Qiang Yu wrote:
> >> >> The irq handler for a shared IRQ ought to be prepared for running
> >> >> even now it's being freed. So let's check the pointer used by
> >> >> mhi_irq_handler to avoid null pointer access since it is probably
> >> >> released before freeing IRQ.
> >> >> 
> >> >> Signed-off-by: Qiang Yu <quic_qianyu at quicinc.com>
> >> >
> >> > Reviewed-by: Manivannan Sadhasivam <mani at kernel.org>
> >> 
> >> This fixes the crash and my regression tests pass now, thanks. But
> >> please see my question below.
> >> 
> >> Tested-by: Kalle Valo <kvalo at kernel.org>
> >> 
> >
> > Thanks Kalle!
> 
> I just tested v6.0-rc3 and it's still crashing. What's the plan to get
> this fix to Linus?

Sorry for the delay. Just sent the PR to Greg for including it as a fix for
v6.0.

Thanks,
Mani

> 
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