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imx-drm: imx-drm-core: improve safety of imx_drm_add_crtc()
authorRussell King <rmk+kernel@arm.linux.org.uk>
Mon, 16 Dec 2013 12:39:31 +0000 (12:39 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 18 Dec 2013 01:12:55 +0000 (17:12 -0800)
We must not add more CRTCs than we have declared to the vblank
helpers, otherwise we overflow their arrays.  Force failure if we
exceed the number of CRTCs.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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