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authorHans de Goede <hdegoede@redhat.com>2010-10-26 05:16:32 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-12-29 08:16:30 -0200
commit2661da47daefd4f22f9fdc7e9294a1cb9edf515b (patch)
tree0a2e8731304e7637abc6bf4716ec8568a7e958ab /drivers/media/video/gspca/gspca.c
parent314b3e0881c6acb4f40e07565ac1a7798c7698a3 (diff)
[media] gspca: only set gspca->int_urb if submitting it succeeds
Currently alloc_and_submit_int_urb() is setting gspca->int_urb as soon as the allocation has succeeded, but if the subsequent submit fails, the urb gets destroyed. And then later will get destroyed again in gspca_input_destroy_urb() because gspca->int_urb is set, leading to a double free. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/gspca/gspca.c')
-rw-r--r--drivers/media/video/gspca/gspca.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index dbd63c542317..a089fcaed8ad 100644
--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -224,12 +224,12 @@ static int alloc_and_submit_int_urb(struct gspca_dev *gspca_dev,
buffer, buffer_len,
int_irq, (void *)gspca_dev, interval);
urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
- gspca_dev->int_urb = urb;
ret = usb_submit_urb(urb, GFP_KERNEL);
if (ret < 0) {
PDEBUG(D_ERR, "submit int URB failed with error %i", ret);
goto error_submit;
}
+ gspca_dev->int_urb = urb;
return ret;
error_submit: