diff options
| author | Claudiu Beznea | 2023-05-31 10:39:50 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-07-19 16:21:58 +0200 |
| commit | d986fb02a1eae6263a9b646ee538905b3dde5493 (patch) | |
| tree | e0572ba6a3140725595dd4879960a90a437ee132 | |
| parent | 055ea8efdfbbbb1ccdf3862fe59765dc3a50460c (diff) | |
phy: tegra: xusb: check return value of devm_kzalloc()
[ 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.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/phy/tegra/xusb.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/phy/tegra/xusb.c b/drivers/phy/tegra/xusb.c index c3fa22ee2d8d..4d5b4071d47d 100644 --- a/drivers/phy/tegra/xusb.c +++ b/drivers/phy/tegra/xusb.c @@ -670,6 +670,9 @@ 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, |