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drm/i915: avoid uninitialised var in eb_parse()

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The backport of c9d9fdbc10 to 5.10 in
6976f3cf34 removed more than it should
have leading to 'batch' being used uninitialised.  The 5.13 backport and
the mainline commit did not remove the portion this patch adds back.

Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Fixes: 6976f3cf34 ("drm/i915: Revert "drm/i915/gem: Asynchronous cmdparser"")
Cc: <stable@vger.kernel.org> # 5.10
Cc: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jonathan Gray 2021-08-09 21:30:22 +10:00 • committed by Greg Kroah-Hartman
commit 11891adab2
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
View file

@ -2351,6 +2351,12 @@ static int eb_parse(struct i915_execbuffer *eb)
eb->batch_flags |= I915_DISPATCH_SECURE;
}
batch = eb_dispatch_secure(eb, shadow);
if (IS_ERR(batch)) {
err = PTR_ERR(batch);
goto err_trampoline;
}
err = intel_engine_cmd_parser(eb->engine,
eb->batch->vma,
eb->batch_start_offset,
@ -2377,6 +2383,7 @@ secure_batch:
err_unpin_batch:
if (batch)
i915_vma_unpin(batch);
err_trampoline:
if (trampoline)
i915_vma_unpin(trampoline);
err_shadow: