From: Darren Jenkins Date: Wed, 30 Dec 2009 01:16:35 +0000 (+1100) Subject: gpu/drm/radeon/radeon_irq.c: move a dereference below a NULL test X-Git-Tag: 2.1b_release~9514^2~55^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=65aa2f4e8d85b6145ef4834f440a63ab68bd7443;p=platform%2Fkernel%2Fkernel-mfld-blackbay.git gpu/drm/radeon/radeon_irq.c: move a dereference below a NULL test If a NULL value is possible, the dereference should only occur after the NULL test. Coverity CID: 13338 Signed-off-by: Darren Jenkins Signed-off-by: Dave Airlie --- diff --git a/drivers/gpu/drm/radeon/radeon_irq.c b/drivers/gpu/drm/radeon/radeon_irq.c index b79ecc4..2f349a3 100644 --- a/drivers/gpu/drm/radeon/radeon_irq.c +++ b/drivers/gpu/drm/radeon/radeon_irq.c @@ -289,16 +289,16 @@ int radeon_irq_emit(struct drm_device *dev, void *data, struct drm_file *file_pr drm_radeon_irq_emit_t *emit = data; int result; - if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600) - return -EINVAL; - - LOCK_TEST_WITH_RETURN(dev, file_priv); - if (!dev_priv) { DRM_ERROR("called with no initialization\n"); return -EINVAL; } + if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600) + return -EINVAL; + + LOCK_TEST_WITH_RETURN(dev, file_priv); + result = radeon_emit_irq(dev); if (DRM_COPY_TO_USER(emit->irq_seq, &result, sizeof(int))) {