From: Ray Chen <raychen@xxxxxxxxxxxxxxxx>
System crash because of NULL pointer reference due to
cleanup_scatter is not implemented for USB.
Signed-off-by: Ray Chen <raychen@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath6kl/usb.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath/ath6kl/usb.c b/drivers/net/wireless/ath/ath6kl/usb.c
index 73aacdd..dfbbe9e 100644
--- a/drivers/net/wireless/ath/ath6kl/usb.c
+++ b/drivers/net/wireless/ath/ath6kl/usb.c
@@ -1037,6 +1037,14 @@ static void ath6kl_usb_stop(struct ath6kl *ar)
hif_stop(ar);
}
+static void ath6kl_usb_cleanup_scatter(struct ath6kl *ar)
+{
+ /*
+ * USB doesn't support it. Just return.
+ */
+ return;
+}
+
static const struct ath6kl_hif_ops ath6kl_usb_ops = {
.diag_read32 = ath6kl_usb_diag_read32,
.diag_write32 = ath6kl_usb_diag_write32,
@@ -1049,6 +1057,7 @@ static const struct ath6kl_hif_ops ath6kl_usb_ops = {
.pipe_get_default = ath6kl_usb_get_default_pipe,
.pipe_map_service = ath6kl_usb_map_service_pipe,
.pipe_get_free_queue_number = ath6kl_usb_get_free_queue_number,
+ .cleanup_scatter = ath6kl_usb_cleanup_scatter,
};
/* ath6kl usb driver registered functions */
--
1.7.0.4
--
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