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| author | Jani Nikula <ext-jani.1.nikula@nokia.com> | 2010-03-18 10:32:05 +0100 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@nokia.com> | 2010-05-18 14:14:29 +0300 |
| commit | 238a41329ca208d1170962260babb428b6e222c2 (patch) | |
| tree | c437064cad869fd67fe44c7965893494a6daf407 /drivers/video | |
| parent | 508886cf98c81cee73cd75943b3d0039801327ab (diff) | |
| download | op-kernel-dev-238a41329ca208d1170962260babb428b6e222c2.zip op-kernel-dev-238a41329ca208d1170962260babb428b6e222c2.tar.gz | |
OMAP: DSS2: fix lock_fb_info() and omapfb_lock() locking order
Framebuffer ioctl processing forces lock_fb_info() -> omapfb_lock()
locking order. Follow that order to avoid possible circular locking
dependency, detected by lockdep.
Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/omap2/omapfb/omapfb-ioctl.c | 4 | ||||
| -rw-r--r-- | drivers/video/omap2/omapfb/omapfb-sysfs.c | 8 |
2 files changed, 6 insertions, 6 deletions
diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c index 1ffa760..2c0f01c 100644 --- a/drivers/video/omap2/omapfb/omapfb-ioctl.c +++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c @@ -183,13 +183,13 @@ int omapfb_update_window(struct fb_info *fbi, struct omapfb2_device *fbdev = ofbi->fbdev; int r; - omapfb_lock(fbdev); lock_fb_info(fbi); + omapfb_lock(fbdev); r = omapfb_update_window_nolock(fbi, x, y, w, h); - unlock_fb_info(fbi); omapfb_unlock(fbdev); + unlock_fb_info(fbi); return r; } diff --git a/drivers/video/omap2/omapfb/omapfb-sysfs.c b/drivers/video/omap2/omapfb/omapfb-sysfs.c index 62bb88f..e104450 100644 --- a/drivers/video/omap2/omapfb/omapfb-sysfs.c +++ b/drivers/video/omap2/omapfb/omapfb-sysfs.c @@ -137,8 +137,8 @@ static ssize_t show_overlays(struct device *dev, ssize_t l = 0; int t; - omapfb_lock(fbdev); lock_fb_info(fbi); + omapfb_lock(fbdev); for (t = 0; t < ofbi->num_overlays; t++) { struct omap_overlay *ovl = ofbi->overlays[t]; @@ -154,8 +154,8 @@ static ssize_t show_overlays(struct device *dev, l += snprintf(buf + l, PAGE_SIZE - l, "\n"); - unlock_fb_info(fbi); omapfb_unlock(fbdev); + unlock_fb_info(fbi); return l; } @@ -195,8 +195,8 @@ static ssize_t store_overlays(struct device *dev, struct device_attribute *attr, if (buf[len - 1] == '\n') len = len - 1; - omapfb_lock(fbdev); lock_fb_info(fbi); + omapfb_lock(fbdev); if (len > 0) { char *p = (char *)buf; @@ -303,8 +303,8 @@ static ssize_t store_overlays(struct device *dev, struct device_attribute *attr, r = count; out: - unlock_fb_info(fbi); omapfb_unlock(fbdev); + unlock_fb_info(fbi); return r; } |
