diff options
| author | Danny Kukawka <danny.kukawka@bisect.de> | 2012-01-24 16:44:42 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-05-21 10:46:23 -0700 |
| commit | dfd1f501baad13e70a9eabcfbf8f72773da4caf6 (patch) | |
| tree | 720f78c544a611b822a4a9f766c06b1d68ea9ead | |
| parent | 367401149c4368f6cc79543a2d2e3515f009d7dd (diff) | |
OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on OMAP4
commit cc1d3e032df53d83d0ca4d537d8eb67eb5b3e808 upstream.
Commit ba02fa37de80bea10d706f39f076dd848348320a disabled the
venc driver registration on OMAP4. Since the driver never gets
probed/initialised your get a dereferenceed NULL pointer if you
try to get info from /sys/kernel/debug/omapdss/venc
Return info message about disabled venc if venc_dump_regs() gets called.
Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/video/omap2/dss/venc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c index 5c3d0f901510..928475b173c6 100644 --- a/drivers/video/omap2/dss/venc.c +++ b/drivers/video/omap2/dss/venc.c @@ -699,6 +699,11 @@ void venc_dump_regs(struct seq_file *s) { #define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, venc_read_reg(r)) + if (cpu_is_omap44xx()) { + seq_printf(s, "VENC currently disabled on OMAP44xx\n"); + return; + } + if (venc_runtime_get()) return; |