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Bug 3754

Summary: Edit null-check in SDL_render_d3d11
Product: SDL Reporter: Coriiander <coriiander>
Component: renderAssignee: Sam Lantinga <slouken>
Status: RESOLVED INVALID QA Contact: Sam Lantinga <slouken>
Severity: trivial    
Priority: P2    
Version: 2.0.5   
Hardware: All   
OS: Windows (All)   

Description Coriiander 2017-08-14 22:04:22 UTC 
FILE:
\SDL2-2.0.5\src\render\direct3d11\SDL_render_d3d11

FUNCTION:
static void D3D11_DestroyRenderer(SDL_Renderer * renderer)

WHAT:
1) D3D11_DestroyRenderer calls D3D11_ReleaseAll,passing the renderer as parameter.
2) D3D11_ReleaseAll releases stuff. No null-checks are performed. Return back to D3D11_DestroyRenderer 
3) D3D11_DestroyRenderer frees stuff, but does null check before free.

FIX:
Remove the null-check "if (data)" in D3D11_DestroyRenderer, or get the null-logic straight and consistent. It's messy as is.
Comment 1 Sam Lantinga 2017-08-14 22:58:22 UTC 
There is indeed a check "if (data)" in D3D11_ReleaseAll().
This check needs to be in both places because they are called from different contexts, with the renderer in different states.