From: Manivannan Sadhasivam Date: Mon, 27 Nov 2023 11:22:07 +0000 (+0530) Subject: bus: mhi: ep: Add checks for read/write callbacks while registering controllers X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=309ab14f70d137f708ca52e275dc9fd20d3e9147;p=linux.git bus: mhi: ep: Add checks for read/write callbacks while registering controllers The MHI EP controller drivers has to support both sync and async read/write callbacks. Hence, add a check for it. Signed-off-by: Manivannan Sadhasivam --- diff --git a/drivers/bus/mhi/ep/main.c b/drivers/bus/mhi/ep/main.c index 063c07241da78..65fc1d738bec2 100644 --- a/drivers/bus/mhi/ep/main.c +++ b/drivers/bus/mhi/ep/main.c @@ -1464,6 +1464,10 @@ int mhi_ep_register_controller(struct mhi_ep_cntrl *mhi_cntrl, if (!mhi_cntrl || !mhi_cntrl->cntrl_dev || !mhi_cntrl->mmio || !mhi_cntrl->irq) return -EINVAL; + if (!mhi_cntrl->read_sync || !mhi_cntrl->write_sync || + !mhi_cntrl->read_async || !mhi_cntrl->write_async) + return -EINVAL; + ret = mhi_ep_chan_init(mhi_cntrl, config); if (ret) return ret;