Commit 03c961ba authored Sep 03, 2013 by Thierry Reding

gpu: host1x: Check for valid host1x pointer

Under rare circumstances it can happen that the host1x driver's .probe()
doesn't finish properly, in which case the device's driver-specific data
will not be set. Instead of crashing in such a situation, propagate the
error to callers of the host1x_get_drm_data() function.

Signed-off-by: Thierry Reding <treding@nvidia.com>

parent 745cecc0

drivers/gpu/host1x/dev.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -43,7 +43,7 @@ void host1x_set_drm_data(struct device dev, void data)
		void host1x_get_drm_data(struct device dev)
		{
		struct host1x *host1x = dev_get_drvdata(dev);
		return host1x->drm_data;
		return host1x ? host1x->drm_data : NULL;
		}

		void host1x_sync_writel(struct host1x *host1x, u32 v, u32 r)