USB: pwc-if loop fix

We should free urbs starting at [i-1] not [i].

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c
index 46c11483088..83739b213e7 100644
--- a/drivers/media/video/pwc/pwc-if.c
+++ b/drivers/media/video/pwc/pwc-if.c
@@ -866,11 +866,10 @@ int pwc_isoc_init(struct pwc_device *pdev)
         }
         if (ret) {
                 /* De-allocate in reverse order */
-                while (i >= 0) {
+                while (i--) {
                         if (pdev->sbuf[i].urb != NULL)
                                 usb_free_urb(pdev->sbuf[i].urb);
                         pdev->sbuf[i].urb = NULL;
-                        i--;
                 }
                 return ret;
         }