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mesa/st: Check for a NULL _LinkedShader[i] before using it.

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The rest of the linker/glsl translation code checks for NULL, so I suppose we should check here too. Fixes crash on exit with i915g instanced drawing.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Stéphane Marchesin 2011-10-09 16:49:19 -07:00
parent 0f55f133f1
commit ddba509c16
1 changed files with 2 additions and 1 deletions
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3
src/mesa/state_tracker/st_program.c
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@ -1154,7 +1154,8 @@ destroy_shader_program_variants_cb(GLuint key, void *data, void *userData)
}
for (i = 0; i < Elements(shProg->_LinkedShaders); i++) {
destroy_program_variants(st, shProg->_LinkedShaders[i]->Program);
if (shProg->_LinkedShaders[i])
destroy_program_variants(st, shProg->_LinkedShaders[i]->Program);
}
}
break;