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Subject: [media] usbvision: fix leak of usb_dev on failure paths in usbvision_probe() Author: Alexey Khoroshilov <[email protected]> Date: Fri Mar 27 19:39:09 2015 -0300 There is no usb_put_dev() on failure paths in usbvision_probe(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <[email protected]> Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/usb/usbvision/usbvision-video.c | 24 +++++++++++++++++------- 1 files changed, 17 insertions(+), 7 deletions(-) --- http://git.linuxtv.org/cgit.cgi/media_tree.git/commit/?id=afd270d1a45043cef14341bcceff62ed50e8dc9a diff --git a/drivers/media/usb/usbvision/usbvision-video.c b/drivers/media/usb/usbvision/usbvision-video.c index 2579c87..12b403e 100644 --- a/drivers/media/usb/usbvision/usbvision-video.c +++ b/drivers/media/usb/usbvision/usbvision-video.c @@ -1507,7 +1507,7 @@ static int usbvision_probe(struct usb_interface *intf, const struct usb_host_interface *interface; struct usb_usbvision *usbvision = NULL; const struct usb_endpoint_descriptor *endpoint; - int model, i; + int model, i, ret; PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", dev->descriptor.idVendor, @@ -1516,7 +1516,8 @@ static int usbvision_probe(struct usb_interface *intf, model = devid->driver_info; if (model < 0 || model >= usbvision_device_data_size) { PDEBUG(DBG_PROBE, "model out of bounds %d", model); - return -ENODEV; + ret = -ENODEV; + goto err_usb; } printk(KERN_INFO "%s: %s found\n", __func__, usbvision_device_data[model].model_string); @@ -1531,18 +1532,21 @@ static int usbvision_probe(struct usb_interface *intf, __func__, ifnum); dev_err(&intf->dev, "%s: Endpoint attributes %d", __func__, endpoint->bmAttributes); - return -ENODEV; + ret = -ENODEV; + goto err_usb; } if (usb_endpoint_dir_out(endpoint)) { dev_err(&intf->dev, "%s: interface %d. has ISO OUT endpoint!\n", __func__, ifnum); - return -ENODEV; + ret = -ENODEV; + goto err_usb; } usbvision = usbvision_alloc(dev, intf); if (usbvision == NULL) { dev_err(&intf->dev, "%s: couldn't allocate USBVision struct\n", __func__); - return -ENOMEM; + ret = -ENOMEM; + goto err_usb; } if (dev->descriptor.bNumConfigurations > 1) @@ -1561,8 +1565,8 @@ static int usbvision_probe(struct usb_interface *intf, usbvision->alt_max_pkt_size = kmalloc(32 * usbvision->num_alt, GFP_KERNEL); if (usbvision->alt_max_pkt_size == NULL) { dev_err(&intf->dev, "usbvision: out of memory!\n"); - usbvision_release(usbvision); - return -ENOMEM; + ret = -ENOMEM; + goto err_pkt; } for (i = 0; i < usbvision->num_alt; i++) { @@ -1597,6 +1601,12 @@ static int usbvision_probe(struct usb_interface *intf, PDEBUG(DBG_PROBE, "success"); return 0; + +err_pkt: + usbvision_release(usbvision); +err_usb: + usb_put_dev(dev); + return ret; } _______________________________________________ linuxtv-commits mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
