* [PATCH] media: usb: airspy: clean the freed pointer and counter
@ 2021-08-15 9:49 Nil Yi
0 siblings, 0 replies; only message in thread
From: Nil Yi @ 2021-08-15 9:49 UTC (permalink / raw)
To: crope, linux-media
After urb was freed, the pointer and counter need to be
cleaned.
Signed-off-by: Nil Yi <teroincn@163.com>
---
drivers/media/usb/airspy/airspy.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/media/usb/airspy/airspy.c b/drivers/media/usb/airspy/airspy.c
index 7a81be797..d56845261 100644
--- a/drivers/media/usb/airspy/airspy.c
+++ b/drivers/media/usb/airspy/airspy.c
@@ -415,8 +415,11 @@ static int airspy_alloc_urbs(struct airspy *s)
dev_dbg(s->dev, "alloc urb=%d\n", i);
s->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC);
if (!s->urb_list[i]) {
- for (j = 0; j < i; j++)
+ for (j = 0; j < i; j++) {
usb_free_urb(s->urb_list[j]);
+ s->urb_list[j] = NULL;
+ }
+ s->urbs_initialized = 0;
return -ENOMEM;
}
usb_fill_bulk_urb(s->urb_list[i],
--
2.17.1
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2021-08-15 9:49 [PATCH] media: usb: airspy: clean the freed pointer and counter Nil Yi
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