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[9/9] bus: mhi: ep: Add checks for read/write callbacks while registering controllers

Message ID 20231127124529.78203-10-manivannan.sadhasivam@linaro.org
State New
Headers show
Series bus: mhi: ep: Add async read/write support | expand

Commit Message

Manivannan Sadhasivam Nov. 27, 2023, 12:45 p.m. UTC 
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 <manivannan.sadhasivam@linaro.org>
---
 drivers/bus/mhi/ep/main.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/bus/mhi/ep/main.c b/drivers/bus/mhi/ep/main.c
index 3e599d9640f5..6b84aeeb247a 100644
--- a/drivers/bus/mhi/ep/main.c
+++ b/drivers/bus/mhi/ep/main.c
@@ -1471,6 +1471,10 @@  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;