linux-kernel - [PATCH][next] drm/i915: fix use of uninitialized pointer vaddr

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Date:   Fri, 31 May 2019 11:32:01 +0100
From:   Colin King <colin.king@...onical.com>
To:     Matthew Auld <matthew.auld@...el.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Chris Wilson <chris@...is-wilson.co.uk>,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] drm/i915: fix use of uninitialized pointer vaddr

From: Colin Ian King <colin.king@...onical.com>

The assignment of err is using the incorrect pointer vaddr that has
not been initialized. Fix this by using the correct pointer obj instead.

Addresses-Coverity: ("Uninitialized pointer read")
Fixes: 6501aa4e3a45 ("drm/i915: add in-kernel blitter client")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c
index 8de568d2c792..e23d8c9e9298 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c
@@ -32,7 +32,7 @@ static int igt_fill_blt(void *arg)
 
 		obj = i915_gem_object_create_internal(i915, sz);
 		if (IS_ERR(obj)) {
-			err = PTR_ERR(vaddr);
+			err = PTR_ERR(obj);
 			goto err_flush;
 		}
 
-- 
2.20.1