Centos-kernel-stream-9/drivers/pci/switch
Myron Stowe 4ba565f4fc PCI: switchtec: Return -EFAULT for copy_to_user() errors
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2179137
Upstream Status: ddc10938e08cd7aac63d8385f7305f7889df5179

commit ddc10938e08cd7aac63d8385f7305f7889df5179
Author: Bjorn Helgaas <bhelgaas@google.com>
Date:   Fri Dec 16 10:21:26 2022 -0600

    PCI: switchtec: Return -EFAULT for copy_to_user() errors

    switchtec_dev_read() didn't handle copy_to_user() errors correctly: it
    assigned "rc = -EFAULT", but actually returned either "size", -ENXIO, or
    -EBADMSG instead.

    Update the failure cases to unlock mrpc_mutex and return -EFAULT directly.

    Link: https://lore.kernel.org/r/20221216162126.207863-3-helgaas@kernel.org
    Fixes: 080b47def5 ("MicroSemi Switchtec management interface driver")
    Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
    Reviewed-by: Logan Gunthorpe <logang@deltatee.com>

Signed-off-by: Myron Stowe <mstowe@redhat.com>
2023-03-29 09:00:01 -06:00
..
Kconfig
Makefile
switchtec.c PCI: switchtec: Return -EFAULT for copy_to_user() errors 2023-03-29 09:00:01 -06:00