diff options
| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-12-14 02:56:15 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-02-26 15:10:24 -0300 |
| commit | eecee32ac2c4b00b76cc8d99fd8d2b9fd54a283d (patch) | |
| tree | b76c3a68f773c7575b982b2f2f0dd70894f4306c /drivers/media/IR | |
| parent | d4b778d36889b4d51d79a99f8a96e110def8541c (diff) | |
V4L/DVB (13639): ir-sysfs: Properly protect rc_tab changes with a lock
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/IR')
| -rw-r--r-- | drivers/media/IR/ir-sysfs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/IR/ir-sysfs.c b/drivers/media/IR/ir-sysfs.c index a96738135bb..d73589ad55e 100644 --- a/drivers/media/IR/ir-sysfs.c +++ b/drivers/media/IR/ir-sysfs.c @@ -79,6 +79,7 @@ static ssize_t store_protocol(struct device *d, struct ir_input_dev *ir_dev = dev_get_drvdata(d); enum ir_type ir_type = IR_TYPE_UNKNOWN; int rc = -EINVAL; + unsigned long flags; char *buf; buf = strsep((char **) &data, "\n"); @@ -104,7 +105,9 @@ static ssize_t store_protocol(struct device *d, return -EINVAL; } + spin_lock_irqsave(&ir_dev->rc_tab.lock, flags); ir_dev->rc_tab.ir_type = ir_type; + spin_unlock_irqrestore(&ir_dev->rc_tab.lock, flags); IR_dprintk(1, "Current protocol is %ld\n", ir_type); |