Commit 1de8e129 authored Nov 12, 2012 by Tomi Valkeinen

OMAPDSS: DPI: fix crash with dpi_verify_dsi_pll()



If the DSI support has not been compiled in or the SoC doesn't have DSI
hardware, dpi_get_dsidev() returns NULL. This NULL is passed to
dpi_verify_dsi_pll() causing a crash. The bug was added with commit
0e8276ef (OMAPDSS: DPI: always use DSI
PLL if available).

Fix this by checking if dsidev is NULL before calling
dpi_verify_dsi_pll().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

parent 7e12be71

drivers/video/omap2/dss/dpi.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -412,7 +412,7 @@ static int __init dpi_init_display(struct omap_dss_device *dssdev)
		*/
		dsidev = dpi_get_dsidev(dssdev->channel);

		if (dpi_verify_dsi_pll(dsidev)) {
		if (dsidev && dpi_verify_dsi_pll(dsidev)) {
		dsidev = NULL;
		DSSWARN("DSI PLL not operational\n");
		}