[PATCH RESEND] drm/tegra: fix a possible null pointer dereference

[Thierry Reding]

On Wed, Feb 12, 2025 at 09:42:45AM +0800, Qiu-ji Chen wrote:
> In tegra_crtc_reset(), new memory is allocated with kzalloc(), but
> no check is performed. Before calling __drm_atomic_helper_crtc_reset,
> state should be checked to prevent possible null pointer dereference.
> 
> Fixes: b7e0b04ae450 ("drm/tegra: Convert to using __drm_atomic_helper_crtc_reset() for reset.")
> Cc: stable at vger.kernel.org
> Signed-off-by: Qiu-ji Chen <chenqiuji666 at gmail.com>
> ---
>  drivers/gpu/drm/tegra/dc.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)

Applied, thanks.

Thierry
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