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From: Dan Carpenter <dan.carpenter@oracle.com>
To: mark.yao@rock-chips.com
Cc: dri-devel@lists.freedesktop.org
Subject: re: drm: rockchip: Add basic drm driver
Date: Tue, 16 Dec 2014 14:51:29 +0300	[thread overview]
Message-ID: <20141216115128.GA9761@mwanda> (raw)

Hello Mark Yao,

The patch 2048e3286f34: "drm: rockchip: Add basic drm driver" from
Aug 22, 2014, leads to the following static checker warning:

	drivers/gpu/drm/rockchip/rockchip_drm_vop.c:1383 vop_bind()
	warn: unsigned 'vop->irq' is never less than zero.

drivers/gpu/drm/rockchip/rockchip_drm_vop.c
  1381  
  1382          vop->irq = platform_get_irq(pdev, 0);
  1383          if (vop->irq < 0) {
                    ^^^^^^^^^^^^
Doesn't work.

  1384                  dev_err(dev, "cannot find irq for vop\n");
  1385                  return vop->irq;
  1386          }
  1387  

	drivers/gpu/drm/rockchip/rockchip_drm_vop.c:1188 vop_create_crtc()
	warn: missing error code here? 'of_get_child_by_name()' failed.

  1184          port = of_get_child_by_name(dev->of_node, "port");
  1185          if (!port) {
  1186                  DRM_ERROR("no port node found in %s\n",
  1187                            dev->of_node->full_name);

Probably, "ret = -ENODEV;"

  1188                  goto err_cleanup_crtc;
  1189          }
  1190  


regards,
dan carpenter
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             reply	other threads:[~2014-12-16 11:51 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-16 11:51 Dan Carpenter [this message]
2014-12-17  0:56 ` drm: rockchip: Add basic drm driver Mark yao
2014-12-17 12:42   ` Dan Carpenter

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