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OMAP: DSS2: Check if display supports update mode changes

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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 <ville.syrjala@nokia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
This commit is contained in:
Ville Syrjälä 2010-03-02 21:30:52 +02:00 committed by Tomi Valkeinen
parent 5ab8e30c18
commit 825f50b1a4
1 changed files with 3 additions and 0 deletions
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3
drivers/video/omap2/dss/display.c
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@ -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) {