13 lines
308 B
Diff
13 lines
308 B
Diff
--- a/drivers/cbus/retu.c
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+++ b/drivers/cbus/retu.c
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@@ -120,7 +120,9 @@ void retu_write_reg(struct device *child
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{
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struct retu *retu = dev_get_drvdata(child->parent);
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+ mutex_lock(&retu->mutex);
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__retu_write_reg(retu, reg, val);
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+ mutex_unlock(&retu->mutex);
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}
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EXPORT_SYMBOL_GPL(retu_write_reg);
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