From 59d9445e851976d973a5a4009f80a3d55959d231 Mon Sep 17 00:00:00 2001 From: Evgeniy Polyakov Date: Wed, 22 Aug 2007 14:01:51 -0700 Subject: [PATCH] w1: fix w1_remove_master_device() searching In case bus master driver provided bogus value as its private data, search can be incorrect. Problem found by Adrian Bunk. Signed-off-by: Evgeniy Polyakov Cc: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/w1/w1_int.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/w1/w1_int.c b/drivers/w1/w1_int.c index 2fbd8dd16d..6840dfebe4 100644 --- a/drivers/w1/w1_int.c +++ b/drivers/w1/w1_int.c @@ -170,22 +170,24 @@ void __w1_remove_master_device(struct w1_master *dev) void w1_remove_master_device(struct w1_bus_master *bm) { - struct w1_master *dev = NULL; + struct w1_master *dev, *found = NULL; list_for_each_entry(dev, &w1_masters, w1_master_entry) { if (!dev->initialized) continue; - if (dev->bus_master->data == bm->data) + if (dev->bus_master->data == bm->data) { + found = dev; break; + } } - if (!dev) { + if (!found) { printk(KERN_ERR "Device doesn't exist.\n"); return; } - __w1_remove_master_device(dev); + __w1_remove_master_device(found); } EXPORT_SYMBOL(w1_add_master_device); -- 2.39.5