diff options
| author | Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> | 2014-03-17 15:34:17 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-03-17 13:44:18 -0400 |
| commit | 8bf6adb988c6843f0e58d2b210526cf947a8a746 (patch) | |
| tree | 911326c6ad96a61015c909dc7063847e3def2f4a /drivers/net/wireless/ath/wil6210/txrx.c | |
| parent | fa4a18e73b21402ed00cfb852d94d169994c5aa3 (diff) | |
| download | talos-op-linux-8bf6adb988c6843f0e58d2b210526cf947a8a746.tar.gz talos-op-linux-8bf6adb988c6843f0e58d2b210526cf947a8a746.zip | |
wil6210: fix memory leak in the AP flow
When switching between STA and AP modes, memory allocated for Rx vring leaks
This is because start_ap() allocates Rx vring but stop_ap() do not free it.
Logically, Rx vring is not valid (HW can't use it anymore), so free it in reset()
Also, check double init for Rx vring and bail out with -EINVAL
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/txrx.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/txrx.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c index 5cda0ea9925f..97d036adb382 100644 --- a/drivers/net/wireless/ath/wil6210/txrx.c +++ b/drivers/net/wireless/ath/wil6210/txrx.c @@ -557,6 +557,11 @@ int wil_rx_init(struct wil6210_priv *wil) struct vring *vring = &wil->vring_rx; int rc; + if (vring->va) { + wil_err(wil, "Rx ring already allocated\n"); + return -EINVAL; + } + vring->size = WIL6210_RX_RING_SIZE; rc = wil_vring_alloc(wil, vring); if (rc) |
