diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2021-05-12 13:06:41 +0300 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2021-06-20 23:13:34 +0200 |
| commit | 2269583753d2b8fdd3c861a516ff0cdbfcf4ef0b (patch) | |
| tree | b76ce5803de295571cfd434da9c079d94d44355d /drivers | |
| parent | 065b6211a87746e196b56759a70c7851418dd741 (diff) | |
i2c: cp2615: check for allocation failure in cp2615_i2c_recv()
We need to add a check for if the kzalloc() fails.
Fixes: 4a7695429ead ("i2c: cp2615: add i2c driver for Silicon Labs' CP2615 Digital Audio Bridge")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Bence Csókás <bence98@sch.bme.hu>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/i2c/busses/i2c-cp2615.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/i2c/busses/i2c-cp2615.c b/drivers/i2c/busses/i2c-cp2615.c index 78cfecd1ea76..3ded28632e4c 100644 --- a/drivers/i2c/busses/i2c-cp2615.c +++ b/drivers/i2c/busses/i2c-cp2615.c @@ -138,17 +138,23 @@ cp2615_i2c_send(struct usb_interface *usbif, struct cp2615_i2c_transfer *i2c_w) static int cp2615_i2c_recv(struct usb_interface *usbif, unsigned char tag, void *buf) { - struct cp2615_iop_msg *msg = kzalloc(sizeof(*msg), GFP_KERNEL); - struct cp2615_i2c_transfer_result *i2c_r = (struct cp2615_i2c_transfer_result *)&msg->data; struct usb_device *usbdev = interface_to_usbdev(usbif); - int res = usb_bulk_msg(usbdev, usb_rcvbulkpipe(usbdev, IOP_EP_IN), - msg, sizeof(struct cp2615_iop_msg), NULL, 0); + struct cp2615_iop_msg *msg; + struct cp2615_i2c_transfer_result *i2c_r; + int res; + + msg = kzalloc(sizeof(*msg), GFP_KERNEL); + if (!msg) + return -ENOMEM; + res = usb_bulk_msg(usbdev, usb_rcvbulkpipe(usbdev, IOP_EP_IN), msg, + sizeof(struct cp2615_iop_msg), NULL, 0); if (res < 0) { kfree(msg); return res; } + i2c_r = (struct cp2615_i2c_transfer_result *)&msg->data; if (msg->msg != htons(iop_I2cTransferResult) || i2c_r->tag != tag) { kfree(msg); return -EIO; |