On Wed, 09 Oct 2024, Suraj Kandpal <suraj.kandpal@xxxxxxxxx> wrote:
> Add dmc null check before dereferncing to get the major and minor
> version.
>
> Signed-off-by: Suraj Kandpal <suraj.kandpal@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_dmc.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c
> index 48bbbf8f312c..8c193de0e253 100644
> --- a/drivers/gpu/drm/i915/display/intel_dmc.c
> +++ b/drivers/gpu/drm/i915/display/intel_dmc.c
> @@ -1263,8 +1263,9 @@ static int intel_dmc_debugfs_status_show(struct seq_file *m, void *unused)
> if (!intel_dmc_has_payload(display))
See what this does.
BR,
Jani.
> goto out;
>
> - seq_printf(m, "version: %d.%d\n", DMC_VERSION_MAJOR(dmc->version),
> - DMC_VERSION_MINOR(dmc->version));
> + if (dmc)
> + seq_printf(m, "version: %d.%d\n", DMC_VERSION_MAJOR(dmc->version),
> + DMC_VERSION_MINOR(dmc->version));
>
> if (DISPLAY_VER(display) >= 12) {
> i915_reg_t dc3co_reg;
--
Jani Nikula, Intel
