diff options
| author | David Dueck <davidcdueck@googlemail.com> | 2015-02-08 16:29:30 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-04-13 14:03:53 +0200 |
| commit | 2904a33c4b08922cdae642a528ef4df2487b56da (patch) | |
| tree | 64d473491271c25f4b30201af7b06cd0b5a50e4d | |
| parent | 3a72c7f1bc0d055493ade4ab4d017309268d526c (diff) | |
usb: phy: am335x-control: check return value of bus_find_device
commit d0f347d62814ec0f599a05c61c5619d5e999e4ae upstream.
This fixes a potential null pointer dereference.
Fixes: d4332013919a ("driver core: dev_get_drvdata: Don't check for NULL dev")
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David Dueck <davidcdueck@googlemail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/phy/phy-am335x-control.c | 3 |
1 files changed, 3 insertions, 0 deletions
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; |