forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on OMAP4

Browse source 
Commit ba02fa37de 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>
This commit is contained in:
Danny Kukawka 2012-01-24 16:44:42 +01:00 • committed by Tomi Valkeinen
commit cc1d3e032d
1 changed files with 5 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

5
drivers/video/omap2/dss/venc.c
View file

@ -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;