[Mesa-dev] [PATCH] mesa: return early with no error when shader source count is 0

[Eric Anholt]

Bartosz Tomczyk <bartosz.tomczyk86 at gmail.com> writes:

> You are right, it doesn't free old shader source.  Should we also clear 
> old source if new source is NULL? Then I could unify both conditions.

shader_source() would free the old and put in the new.  If calloc fails,
you could throw GL_OUT_OF_MEMORY and return.
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