On Wed, Dec 11, 2024 at 08:09:51PM +0100, Thomas Gleixner wrote:
>
> From: Manivannan Sadhasivam <mani@xxxxxxxxxx>
>
> commit 64506b3d23a337e98a74b18dcb10c8619365f2bd upstream.
>
> Otherwise, it will result in a NULL pointer dereference as below:
>
> Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008
> Call trace:
> mutex_lock+0xc/0x54
> platform_device_msi_free_irqs_all+0x14/0x20
> ufs_qcom_remove+0x34/0x48 [ufs_qcom]
> platform_remove+0x28/0x44
> device_remove+0x4c/0x80
> device_release_driver_internal+0xd8/0x178
> driver_detach+0x50/0x9c
> bus_remove_driver+0x6c/0xbc
> driver_unregister+0x30/0x60
> platform_driver_unregister+0x14/0x20
> ufs_qcom_pltform_exit+0x18/0xb94 [ufs_qcom]
> __arm64_sys_delete_module+0x180/0x260
> invoke_syscall+0x44/0x100
> el0_svc_common.constprop.0+0xc0/0xe0
> do_el0_svc+0x1c/0x28
> el0_svc+0x34/0xdc
> el0t_64_sync_handler+0xc0/0xc4
> el0t_64_sync+0x190/0x194
>
> Cc: stable@xxxxxxxxxxxxxxx # 6.3
> Fixes: 519b6274a777 ("scsi: ufs: qcom: Add MCQ ESI config vendor specific ops")
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> Link: https://lore.kernel.org/r/20241111-ufs_bug_fix-v1-2-45ad8b62f02e@xxxxxxxxxx
> Reviewed-by: Bean Huo <beanhuo@xxxxxxxxxx>
> Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>
> Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> ---
> drivers/ufs/host/ufs-qcom.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
Thanks for this, I've dropped the other backports and just taken this
one instead.
greg k-h
