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OMAPDSS: DPI: fix crash with dpi_verify_dsi_pll()

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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
0e8276ef75f5c7811b038d1d23b2b42c16efc5ac (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>
This commit is contained in:
Tomi Valkeinen 2012-11-12 16:52:11 +02:00
parent 7e12be71fb
commit 1de8e129f5
1 changed files with 1 additions and 1 deletions
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2
drivers/video/omap2/dss/dpi.c
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@ -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");
}