From: Claudiu Beznea claudiu.beznea@microchip.com
[ Upstream commit 44faada0f38fc333d392af04c343b0e23f8f5d81 ]
devm_kzalloc() returns a pointer to dynamically allocated memory. Pointer could be NULL in case allocation fails. Check pointer validity. Identified with coccinelle (kmerr.cocci script).
Fixes: f67213cee2b3 ("phy: tegra: xusb: Add usb-role-switch support") Signed-off-by: Claudiu Beznea claudiu.beznea@microchip.com Acked-by: Thierry Reding treding@nvidia.com Link: https://lore.kernel.org/r/20230531073950.145339-1-claudiu.beznea@microchip.c... Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/phy/tegra/xusb.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/phy/tegra/xusb.c b/drivers/phy/tegra/xusb.c index b5bad46a04a38..a296b87dced18 100644 --- a/drivers/phy/tegra/xusb.c +++ b/drivers/phy/tegra/xusb.c @@ -676,6 +676,9 @@ static int tegra_xusb_setup_usb_role_switch(struct tegra_xusb_port *port) port->dev.driver = devm_kzalloc(&port->dev, sizeof(struct device_driver), GFP_KERNEL); + if (!port->dev.driver) + return -ENOMEM; + port->dev.driver->owner = THIS_MODULE;
port->usb_role_sw = usb_role_switch_register(&port->dev,