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| author | Franky Lin <frankyl@broadcom.com> | 2012-04-30 11:43:07 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-05-02 14:02:03 -0400 |
| commit | cf04317227d0c53d931a0b963e7ac6f7f0125e8a (patch) | |
| tree | 782655506b6a999b0f57c41bbb7ef6375716dd31 | |
| parent | 66f2c99af3d6f2d0aa1120884cf1c60613ef61c0 (diff) | |
| download | linux-stable-cf04317227d0c53d931a0b963e7ac6f7f0125e8a.tar.gz linux-stable-cf04317227d0c53d931a0b963e7ac6f7f0125e8a.tar.bz2 linux-stable-cf04317227d0c53d931a0b963e7ac6f7f0125e8a.zip | |
brcmfmac: fix a double spin_unlock_irqrestore issue in dpc
dpc_tl_lock is not acquired in the error handle code for bus down.
But it's unlocked using spin_unlock_irqrestore after finishing task
list walk down. Grab the lock before breaking the loop to avoid a
double unlock.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c index eb3829b03cd3..e2b34e1563f4 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c @@ -2637,6 +2637,7 @@ static int brcmf_sdbrcm_dpc_thread(void *data) /* after stopping the bus, exit thread */ brcmf_sdbrcm_bus_stop(bus->sdiodev->dev); bus->dpc_tsk = NULL; + spin_lock_irqsave(&bus->dpc_tl_lock, flags); break; } |