mirror of https://gitee.com/openkylin/linux.git
V4L/DVB (13639): ir-sysfs: Properly protect rc_tab changes with a lock
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -79,6 +79,7 @@ static ssize_t store_protocol(struct device *d,
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struct ir_input_dev *ir_dev = dev_get_drvdata(d);
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enum ir_type ir_type = IR_TYPE_UNKNOWN;
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int rc = -EINVAL;
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unsigned long flags;
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char *buf;
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buf = strsep((char **) &data, "\n");
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@ -104,7 +105,9 @@ static ssize_t store_protocol(struct device *d,
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return -EINVAL;
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}
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spin_lock_irqsave(&ir_dev->rc_tab.lock, flags);
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ir_dev->rc_tab.ir_type = ir_type;
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spin_unlock_irqrestore(&ir_dev->rc_tab.lock, flags);
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IR_dprintk(1, "Current protocol is %ld\n", ir_type);
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