w1: w1_ds28e04: unlock on error path in w1_f1C_write_pio()
We should unlock here before returning. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -309,8 +309,10 @@ static ssize_t w1_f1C_write_pio(struct file *filp, struct kobject *kobj,
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mutex_lock(&sl->master->mutex);
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/* Write the PIO data */
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if (w1_reset_select_slave(sl))
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if (w1_reset_select_slave(sl)) {
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mutex_unlock(&sl->master->mutex);
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return -1;
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}
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/* set bit 7..2 to value '1' */
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*buf = *buf | 0xFC;
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