This is a note to let you know that I've just added the patch titled
phy: core: Fix error path in phy_create()
to the 3.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
phy-core-fix-error-path-in-phy_create.patch
and it can be found in the queue-3.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e73b49f1c4e75c44d62585cc3e5b9c7894b61c32 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@xxxxxx>
Date: Thu, 10 Jul 2014 11:55:02 +0530
Subject: phy: core: Fix error path in phy_create()
From: Roger Quadros <rogerq@xxxxxx>
commit e73b49f1c4e75c44d62585cc3e5b9c7894b61c32 upstream.
Prevent resources from being freed twice in case device_add() call
fails within phy_create(). Also use ida_simple_remove() instead of
ida_remove() as we had used ida_simple_get() to allocate the ida.
Signed-off-by: Roger Quadros <rogerq@xxxxxx>
Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/phy/phy-core.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -614,8 +614,9 @@ struct phy *phy_create(struct device *de
return phy;
put_dev:
- put_device(&phy->dev);
- ida_remove(&phy_ida, phy->id);
+ put_device(&phy->dev); /* calls phy_release() which frees resources */
+ return ERR_PTR(ret);
+
free_phy:
kfree(phy);
return ERR_PTR(ret);
@@ -799,7 +800,7 @@ static void phy_release(struct device *d
phy = to_phy(dev);
dev_vdbg(dev, "releasing '%s'\n", dev_name(dev));
- ida_remove(&phy_ida, phy->id);
+ ida_simple_remove(&phy_ida, phy->id);
kfree(phy);
}
Patches currently in stable-queue which might be from rogerq@xxxxxx are
queue-3.15/phy-core-fix-error-path-in-phy_create.patch
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