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drm/admgpu: fix dereferencing null pointer context 

[ Upstream commit 030ffd4d43b433bc6671d9ec34fc12c59220b95d ]

When user space sets an invalid ta type, the pointer context will be empty.
So it need to check the pointer context before using it

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Suggested-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jesse Zhang 2024-05-09 10:57:04 +08:00 committed by Greg Kroah-Hartman
parent 3a01bf2ca9
commit 641dac6417
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c
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@ -334,7 +334,7 @@ static ssize_t ta_if_invoke_debugfs_write(struct file *fp, const char *buf, size
set_ta_context_funcs(psp, ta_type, &context);
if (!context->initialized) {
if (!context || !context->initialized) {
dev_err(adev->dev, "TA is not initialized\n");
ret = -EINVAL;
goto err_free_shared_buf;