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mirror-linux/drivers/soc/aspeed
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Andrew Jeffery 56448e78a6 soc: aspeed: lpc-snoop: Don't disable channels that aren't enabled 
Mitigate e.g. the following:

    # echo 1e789080.lpc-snoop > /sys/bus/platform/drivers/aspeed-lpc-snoop/unbind
    ...
    [  120.363594] Unable to handle kernel NULL pointer dereference at virtual address 00000004 when write
    [  120.373866] [00000004] *pgd=00000000
    [  120.377910] Internal error: Oops: 805 [#1] SMP ARM
    [  120.383306] CPU: 1 UID: 0 PID: 315 Comm: sh Not tainted 6.15.0-rc1-00009-g926217bc7d7d-dirty #20 NONE
    ...
    [  120.679543] Call trace:
    [  120.679559]  misc_deregister from aspeed_lpc_snoop_remove+0x84/0xac
    [  120.692462]  aspeed_lpc_snoop_remove from platform_remove+0x28/0x38
    [  120.700996]  platform_remove from device_release_driver_internal+0x188/0x200
    ...

Fixes: 9f4f9ae81d ("drivers/misc: add Aspeed LPC snoop driver")
Cc: stable@vger.kernel.org
Cc: Jean Delvare <jdelvare@suse.de>
Acked-by: Jean Delvare <jdelvare@suse.de>
Link: https://patch.msgid.link/20250616-aspeed-lpc-snoop-fixes-v2-2-3cdd59c934d3@codeconstruct.com.au
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
 		2025-07-02 11:05:20 +09:30
..
Kconfig
…
Makefile
…
aspeed-lpc-ctrl.c soc: Switch back to struct platform_driver::remove() 2024-11-01 17:08:57 +01:00
aspeed-lpc-snoop.c soc: aspeed: lpc-snoop: Don't disable channels that aren't enabled 2025-07-02 11:05:20 +09:30
aspeed-p2a-ctrl.c soc: Switch back to struct platform_driver::remove() 2024-11-01 17:08:57 +01:00
aspeed-socinfo.c soc: aspeed: socinfo: Add kfree for kstrdup 2023-08-12 12:12:58 +02:00
aspeed-uart-routing.c soc: Switch back to struct platform_driver::remove() 2024-11-01 17:08:57 +01:00