From: Ville Syrjälä <[email protected]> Check whether the display actually has the set_update_mode() function before calling it. Only the sysfs codepath was broken, the omapfb ioctl had the necessary protection.
Signed-off-by: Ville Syrjälä <[email protected]> --- drivers/video/omap2/dss/display.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c index 6a74ea1..3a8f146 100644 --- a/drivers/video/omap2/dss/display.c +++ b/drivers/video/omap2/dss/display.c @@ -82,6 +82,9 @@ static ssize_t display_upd_mode_store(struct device *dev, int val, r; enum omap_dss_update_mode mode; + if (!dssdev->driver->set_update_mode) + return -EINVAL; + val = simple_strtoul(buf, NULL, 10); switch (val) { -- 1.6.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
