[PATCH] drm/vc4: clean up error handling on devm_kzalloc failure

[Eric Anholt]

Colin King <colin.king at canonical.com> writes:

> From: Colin Ian King <colin.king at canonical.com>
>
> The current error handling on devm_kzalloc failures performs a non-null
> check on connector. Thss check is redundant because connector is null
> at that failure point.  With this check removed, we may as well make
> the failure path into a trivial -ENOMEM return to clean up the error
> handling.
>
> Detected by CoverityScan CID#1339527 ("Logically dead code")

Reviewed and applied.  Thanks!
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