This is a note to let you know that I've just added the patch titled
usb: phy: am335x-control: check return value of bus_find_device
to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>From d0f347d62814ec0f599a05c61c5619d5e999e4ae Mon Sep 17 00:00:00 2001
From: David Dueck <[email protected]>
Date: Sun, 8 Feb 2015 16:29:30 +0100
Subject: usb: phy: am335x-control: check return value of bus_find_device
This fixes a potential null pointer dereference.
Cc: <[email protected]> # v3.16+
Fixes: d4332013919a ("driver core: dev_get_drvdata: Don't check for NULL dev")
Acked-by: Sebastian Andrzej Siewior <[email protected]>
Signed-off-by: David Dueck <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
---
drivers/usb/phy/phy-am335x-control.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/phy/phy-am335x-control.c
b/drivers/usb/phy/phy-am335x-control.c
index 403fab772724..7b3035ff9434 100644
--- a/drivers/usb/phy/phy-am335x-control.c
+++ b/drivers/usb/phy/phy-am335x-control.c
@@ -126,6 +126,9 @@ struct phy_control *am335x_get_phy_control(struct device
*dev)
return NULL;
dev = bus_find_device(&platform_bus_type, NULL, node, match);
+ if (!dev)
+ return NULL;
+
ctrl_usb = dev_get_drvdata(dev);
if (!ctrl_usb)
return NULL;
--
2.3.2
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