Loic Poulain db4e8de193 mhi: Fix double dma free ... mhi_deinit_chan_ctxt functionthat takes care of unitializing channel resources, including unmapping coherent MHI areas, can be called from different path in case of controller unregistering/removal: - From a client driver remove callback, via mhi_unprepare_channel - From mhi_driver_remove that unitialize all channels mhi_driver_remove() |-> driver->remove() | |-> mhi_unprepare_channel() | |-> mhi_deinit_chan_ctxt() |... |-> mhi_deinit_chan_ctxt() This leads to double dma freeing... Fix that by preventing deinit for already uninitialized channel. Link: https://lore.kernel.org/r/1612894264-15956-1-git-send-email-loic.poulain@linaro.org Fixes: a7f422f2f8 ("bus: mhi: Fix channel close issue on driver remove") Reported-by: Kalle Valo <kvalo@codeaurora.org> Tested-by: Kalle Valo <kvalo@codeaurora.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Loic Poulain <loic.poulain@linaro.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20210210082538.2494-2-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-02-10 09:37:07 +01:00
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core	mhi: Fix double dma free	2021-02-10 09:37:07 +01:00
Kconfig	bus: mhi: Add MHI PCI support for WWAN modems	2020-11-18 15:20:34 +05:30
Makefile	bus: mhi: Add MHI PCI support for WWAN modems	2020-11-18 15:20:34 +05:30
pci_generic.c	bus: mhi: pci_generic: Increase num of elements in hw event ring	2021-02-05 17:59:29 +05:30