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    Subject[PATCH 74/83] hsa/radeon: Adding some error messages
    Date
    From: Ben Goz <ben.goz@amd.com>

    Signed-off-by: Ben Goz <ben.goz@amd.com>
    Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
    ---
    drivers/gpu/hsa/radeon/kfd_chardev.c | 8 ++++++--
    1 file changed, 6 insertions(+), 2 deletions(-)

    diff --git a/drivers/gpu/hsa/radeon/kfd_chardev.c b/drivers/gpu/hsa/radeon/kfd_chardev.c
    index 09c9a61..be89d26 100644
    --- a/drivers/gpu/hsa/radeon/kfd_chardev.c
    +++ b/drivers/gpu/hsa/radeon/kfd_chardev.c
    @@ -137,11 +137,15 @@ kfd_ioctl_create_queue(struct file *filep, struct kfd_process *p, void __user *a
    if (copy_from_user(&args, arg, sizeof(args)))
    return -EFAULT;

    - if (!access_ok(VERIFY_WRITE, args.read_pointer_address, sizeof(qptr_t)))
    + if (!access_ok(VERIFY_WRITE, args.read_pointer_address, sizeof(qptr_t))) {
    + pr_err("kfd: can't access read pointer");
    return -EFAULT;
    + }

    - if (!access_ok(VERIFY_WRITE, args.write_pointer_address, sizeof(qptr_t)))
    + if (!access_ok(VERIFY_WRITE, args.write_pointer_address, sizeof(qptr_t))) {
    + pr_err("kfd: can't access write pointer");
    return -EFAULT;
    + }

    q_properties.is_interop = false;
    q_properties.queue_percent = args.queue_percentage;
    --
    1.9.1


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