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drm/i915: Fix an error checking test 

'dma_buf_vmap' returns NULL on error, not an error pointer.

Fixes: 6cca22ede8 ("drm/i915: Add some mock tests for dmabuf interop")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: http://patchwork.freedesktop.org/patch/msgid/20170627053854.21152-1-christophe.jaillet@wanadoo.fr
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Christophe JAILLET 2017-06-27 07:38:54 +02:00 committed by Chris Wilson
parent 774eed4a40
commit 7c3f5317b8
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/i915/selftests/i915_gem_dmabuf.c
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@ -246,9 +246,9 @@ static int igt_dmabuf_export_vmap(void *arg)
i915_gem_object_put(obj);
ptr = dma_buf_vmap(dmabuf);
if (IS_ERR(ptr)) {
err = PTR_ERR(ptr);
pr_err("dma_buf_vmap failed with err=%d\n", err);
if (!ptr) {
pr_err("dma_buf_vmap failed\n");
err = -ENOMEM;
goto out;
}