On Sun, Jun 06, 2021 at 03:41:03PM +0200, Heiner Kallweit wrote:
As explained in [0] currently we may leave SMBHSTSTS_INUSE_STS set, thus potentially breaking ACPI/BIOS usage of the SMBUS device.
Seems patch [0] needs a little bit more of review effort, therefore I'd suggest to apply a part of it as quick win. Just clearing SMBHSTSTS_INUSE_STS when leaving i801_access() should fix the referenced issue and leaves more time for discussing a more sophisticated locking handling.
[0] https://www.spinics.net/lists/linux-i2c/msg51558.html
Fixes: 01590f361e94 ("i2c: i801: Instantiate SPD EEPROMs automatically") Suggested-by: Hector Martin marcan@marcan.st Signed-off-by: Heiner Kallweit hkallweit1@gmail.com
drivers/i2c/busses/i2c-i801.c | 3 +++ 1 file changed, 3 insertions(+)
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This is not the correct way to submit patches for inclusion in the stable kernel tree. Please read: https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html for how to do this properly.
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