From e69f7a6724182e3f3a4f3d73e74c08dd8f657a9d Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 29 Dec 2015 13:36:12 +0100 Subject: [PATCH] USB: mxu11x0: fix memory leak on firmware download Make sure to release the private data before returning -ENODEV after having downloaded the firmware during first probe. Clean up the error paths while at it. Signed-off-by: Johan Hovold --- drivers/usb/serial/mxu11x0.c | 25 ++++++++++++++----------- 1 file changed, 14 insertions(+), 11 deletions(-) diff --git a/drivers/usb/serial/mxu11x0.c b/drivers/usb/serial/mxu11x0.c index 89426c3..c6c4776 100644 --- a/drivers/usb/serial/mxu11x0.c +++ b/drivers/usb/serial/mxu11x0.c @@ -377,7 +377,6 @@ static int mxu1_startup(struct usb_serial *serial) char fw_name[32]; const struct firmware *fw_p = NULL; int err; - int status = 0; dev_dbg(&serial->interface->dev, "%s - product 0x%04X, num configurations %d, configuration value %d\n", __func__, le16_to_cpu(dev->descriptor.idProduct), @@ -407,22 +406,26 @@ static int mxu1_startup(struct usb_serial *serial) if (err) { dev_err(&serial->interface->dev, "failed to request firmware: %d\n", err); - kfree(mxdev); - return err; + goto err_free_mxdev; } err = mxu1_download_firmware(serial, fw_p); - if (err) { - release_firmware(fw_p); - kfree(mxdev); - return err; - } + if (err) + goto err_release_firmware; - status = -ENODEV; - release_firmware(fw_p); + /* device is being reset */ + err = -ENODEV; + goto err_release_firmware; } - return status; + return 0; + +err_release_firmware: + release_firmware(fw_p); +err_free_mxdev: + kfree(mxdev); + + return err; } static int mxu1_write_byte(struct usb_serial_port *port, u32 addr, -- 2.7.4