From: David Fries Date: Sat, 8 Feb 2014 19:37:38 +0000 (-0600) Subject: Revert ds1wm.c from "w1: hold bus_mutex in netlink and search" X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7841b647b9c1b118ae4eed33a0af934818e60553;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git Revert ds1wm.c from "w1: hold bus_mutex in netlink and search" This reverts ds1wm.c from commit d3a8a9dbb903c73a7ec2deae4c9b7d74b6834f4c. Of the three files changed ds1wm.c ds2490.c and w1_netlink.c, it turns out ds1wm.c was locking bus_mutex, but inside the loop and I missed it. Reverting ds1wm.c to the previous version. Reported-by: Dan Carpenter Signed-off-by: David Fries Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c index b077b8b42758..02df3b1381d2 100644 --- a/drivers/w1/masters/ds1wm.c +++ b/drivers/w1/masters/ds1wm.c @@ -326,14 +326,13 @@ static void ds1wm_search(void *data, struct w1_master *master_dev, unsigned slaves_found = 0; unsigned int pass = 0; - mutex_lock(&master_dev->bus_mutex); dev_dbg(&ds1wm_data->pdev->dev, "search begin\n"); while (true) { ++pass; if (pass > 100) { dev_dbg(&ds1wm_data->pdev->dev, "too many attempts (100), search aborted\n"); - break; + return; } mutex_lock(&master_dev->bus_mutex); @@ -440,7 +439,6 @@ static void ds1wm_search(void *data, struct w1_master *master_dev, dev_dbg(&ds1wm_data->pdev->dev, "pass: %d total: %d search done ms d bit pos: %d\n", pass, slaves_found, ms_discrep_bit); - mutex_unlock(&master_dev->bus_mutex); } /* --------------------------------------------------------------------- */