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w1: w1_ds28e04: unlock on error path in w1_f1C_write_pio()

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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>
This commit is contained in:
Dan Carpenter 2012-04-13 16:39:06 +03:00 • committed by Greg Kroah-Hartman
parent 8f1e12512e
commit eda70f1dfc
1 changed files with 3 additions and 1 deletions
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4
drivers/w1/slaves/w1_ds28e04.c
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@ -309,8 +309,10 @@ static ssize_t w1_f1C_write_pio(struct file *filp, struct kobject *kobj,
mutex_lock(&sl->master->mutex); mutex_lock(&sl->master->mutex);
/* Write the PIO data */ /* Write the PIO data */
if (w1_reset_select_slave(sl)) if (w1_reset_select_slave(sl)) {
mutex_unlock(&sl->master->mutex);
return -1; return -1;
}
/* set bit 7..2 to value '1' */ /* set bit 7..2 to value '1' */
*buf = *buf | 0xFC; *buf = *buf | 0xFC;