kernel/drivers/input/mouse/cypress_ps2.c, branch linux-rolling-stable

Input: cypress_ps2 - fix waiting for command response

2024-08-29T17:46:17Z

Commit 8bccf667f62a ("Input: cypress_ps2 - report timeouts when reading command status") uncovered an existing problem with cypress_ps2 driver: it tries waiting on a PS/2 device waitqueue without using the rest of libps2. Unfortunately without it nobody signals wakeup for the waiting process, and each "extended" command was timing out. But the rest of the code simply did not notice it. Fix this by switching from homegrown way of sending request to get command response and reading it to standard ps2_command() which does the right thing. Reported-by: Woody Suwalski Tested-by: Woody Suwalski Fixes: 8bccf667f62a ("Input: cypress_ps2 - report timeouts when reading command status") Link: https://lore.kernel.org/r/a8252e0f-dab4-ef5e-2aa1-407a6f4c7204@gmail.com Signed-off-by: Dmitry Torokhov

Input: cypress_ps2 - use u8 when dealing with byte data

2024-07-03T20:48:53Z

When dealing with byte data use u8 instead of unsigned char or int. Stop layering error handling in cypress_ps2_sendbyte() and simply pass on error code from ps2_sendbyte(). Additionally use u8 instead of unisgned char throughout the code. Link: https://lore.kernel.org/r/20240628224728.2180126-5-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov

Input: cypress_ps2 - propagate errors from lower layers

2024-07-03T20:48:53Z

Do not override errors reported by lower layers with generic "-1", but propagate them to the callers. Change the checks for errors to be in the form of "if (error)" to maintain consistency. Link: https://lore.kernel.org/r/20240628224728.2180126-4-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov

Input: cypress_ps2 - report timeouts when reading command status

2024-07-03T20:48:53Z

Report -ETIMEDOUT error code from cypress_ps2_read_cmd_status() when device does not send enough data within the allotted time in response to a command. Link: https://lore.kernel.org/r/20240628224728.2180126-3-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov

Input: cypress_ps2 - fix error handling when sending command fails

2024-07-03T20:48:53Z

Stop layering error handling in cypress_ps2_sendbyte() and simply pass on error code from ps2_sendbyte() and use it in the callers. This fixes mishandling of error condition in cypress_ps2_read_cmd_status() which expects errors to be negative. Reported-by: Igor Artemiev Link: https://lore.kernel.org/r/20240628224728.2180126-2-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov

Input: cypress_ps2 - clean up setting reporting rate

2024-07-03T20:48:53Z

Casting an integer field containing desired rate to a pointer to bytes works on little endian architectures where the driver is used, but not a good practice. Use a temporary of proper type instead. Link: https://lore.kernel.org/r/20240628224728.2180126-1-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov

Input: mouse - use sizeof(*pointer) instead of sizeof(type)

2024-06-03T04:32:02Z

It is preferred to use sizeof(*pointer) instead of sizeof(type) due to the type of the variable can change and one needs not change the former (unlike the latter). This patch has no effect on runtime behavior. Signed-off-by: Erick Archer Link: https://lore.kernel.org/r/AS8PR02MB7237FB736DBF67A58798FDF38BFE2@AS8PR02MB7237.eurprd02.prod.outlook.com Signed-off-by: Dmitry Torokhov

Input: cypress_ps2 - fix typo in comment

2022-05-21T19:48:39Z

Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall Link: https://lore.kernel.org/r/20220521111145.81697-27-Julia.Lawall@inria.fr Signed-off-by: Dmitry Torokhov

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55Z

Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman

Input: mouse - drop unnecessary calls to input_set_drvdata

2017-01-23T01:22:28Z

Since there is no call to dev_get_drvdata() or input_get_drvdata(), the call to input_set_drvdata() is unnecessary and can be dropped. Signed-off-by: Guenter Roeck Signed-off-by: Dmitry Torokhov