brcmfmac: abort and release host after error
With commit
07d2d437188e ("brcmfmac: Fix use after free in
brcmf_sdio_readframes()") applied, we see locking timeouts in
brcmf_sdio_watchdog_thread().
brcmfmac: brcmf_escan_timeout: timer expired
INFO: task brcmf_wdog/mmc1:621 blocked for more than 120 seconds.
Not tainted
4.19.94-07984-g24ff99a0f713 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
brcmf_wdog/mmc1 D 0 621 2 0x00000000 last_sleep:
2440793077. last_runnable:
2440766827
[<
c0aa1e60>] (__schedule) from [<
c0aa2100>] (schedule+0x98/0xc4)
[<
c0aa2100>] (schedule) from [<
c0853830>] (__mmc_claim_host+0x154/0x274)
[<
c0853830>] (__mmc_claim_host) from [<
bf10c5b8>] (brcmf_sdio_watchdog_thread+0x1b0/0x1f8 [brcmfmac])
[<
bf10c5b8>] (brcmf_sdio_watchdog_thread [brcmfmac]) from [<
c02570b8>] (kthread+0x178/0x180)
In addition to restarting or exiting the loop, it is also necessary to
abort the command and to release the host.
Fixes: 07d2d437188e ("brcmfmac: Fix use after free in brcmf_sdio_readframes()")
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Matthias Kaehlcke <mka@chromium.org>
Cc: Brian Norris <briannorris@chromium.org>
Cc: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: franky.lin@broadcom.com
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>