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Commit d0699909 authored by c_sgarna's avatar c_sgarna Committed by Sudhakar Manapati
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input: synaptics_i2c_rmi4: Reinitialize list after freeing it 



During firmware update and device reset through sysfs, query info
needs to be updated in support_fn_list. However, both these procedures
free the existing list before updation without setting its list head
to consistent state. Reinitialize the list head of support_fn_list
to avoid memory fault during updation.

This patch is propagated from msm-3.10 kernel
(commit: 43220f8e2b60db0131987e5c7d79187e410f519e
input: synaptics_i2c_rmi4: Reinitialize list after freeing it)

CRs-Fixed: 589295
Change-Id: I560e2df53d258e273ff9890c7c62b90a58a423f7
Signed-off-by: default avatarc_sgarna <c_sgarna@codeaurora.org>
Signed-off-by: default avatarSudhakar Manapati <smanap@codeaurora.org>
parent dd634e61

drivers/input/touchscreen/synaptics_i2c_rmi4.c

+2 −0
Original line number Diff line number Diff line
@@ -2404,6 +2404,8 @@ static int synaptics_rmi4_reset_device(struct synaptics_rmi4_data *rmi4_data) 
		}

	}



	INIT_LIST_HEAD(&rmi->support_fn_list);



	retval = synaptics_rmi4_query_device(rmi4_data);

	if (retval < 0) {

		dev_err(&rmi4_data->i2c_client->dev,