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authorChin-Ran Lo <crlo@marvell.com>2015-12-29 04:26:33 -0800
committerMarcel Holtmann <marcel@holtmann.org>2016-01-04 19:25:56 +0100
commit86f7ac77d4035e22ec7e58dcdb96327e2ecc3a9b (patch)
tree615bf39c0e999ebd23b5d03ebb4b9eb683a94c5b /drivers/bluetooth
parentadbdeae5cece1d888a1542edfe9e1c6f8884fef8 (diff)
downloadlinux-86f7ac77d4035e22ec7e58dcdb96327e2ecc3a9b.tar.bz2
Bluetooth: btmrvl: fix hung task warning dump
It's been observed that when bluetooth driver fails to activate the firmware, below hung task warning dump is displayed after 120 seconds. [ 36.461022] Bluetooth: vendor=0x2df, device=0x912e, class=255, fn=2 [ 56.512128] Bluetooth: FW failed to be active in time! [ 56.517264] Bluetooth: Downloading firmware failed! [ 240.252176] INFO: task kworker/3:2:129 blocked for more than 120 seconds. [ 240.258931] Not tainted 3.18.0 #254 [ 240.262972] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 240.270751] kworker/3:2 D ffffffc000205760 0 129 2 0x00000000 [ 240.277825] Workqueue: events request_firmware_work_func [ 240.283134] Call trace: [ 240.285581] [<ffffffc000205760>] __switch_to+0x80/0x8c [ 240.290693] [<ffffffc00088dae0>] __schedule+0x540/0x7b8 [ 240.295921] [<ffffffc00088ddd0>] schedule+0x78/0x84 [ 240.300764] [<ffffffc0006dfd48>] __mmc_claim_host+0xe8/0x1c8 [ 240.306395] [<ffffffc0006edd6c>] sdio_claim_host+0x74/0x84 [ 240.311840] [<ffffffbffc163d08>] 0xffffffbffc163d08 [ 240.316685] [<ffffffbffc165104>] 0xffffffbffc165104 [ 240.321524] [<ffffffbffc130cf8>] mwifiex_dnld_fw+0x98/0x110 [mwifiex] [ 240.327918] [<ffffffbffc12ee88>] mwifiex_remove_card+0x2c4/0x5fc [mwifiex] [ 240.334741] [<ffffffc000596780>] request_firmware_work_func+0x44/0x80 [ 240.341127] [<ffffffc00023b934>] process_one_work+0x2ec/0x50c [ 240.346831] [<ffffffc00023c6a0>] worker_thread+0x350/0x470 [ 240.352272] [<ffffffc0002419bc>] kthread+0xf0/0xfc [ 240.357019] 2 locks held by kworker/3:2/129: [ 240.361248] #0: ("events"){.+.+.+}, at: [<ffffffc00023b840>] process_one_work+0x1f8/0x50c [ 240.369562] #1: ((&fw_work->work)){+.+.+.}, at: [<ffffffc00023b840>] process_one_work+0x1f8/0x50c [ 240.378589] task PC stack pid father [ 240.384501] kworker/1:1 D ffffffc000205760 0 40 2 0x00000000 [ 240.391524] Workqueue: events mtk_atomic_work [ 240.395884] Call trace: [ 240.398317] [<ffffffc000205760>] __switch_to+0x80/0x8c [ 240.403448] [<ffffffc00027279c>] lock_acquire+0x128/0x164 [ 240.408821] kworker/3:2 D ffffffc000205760 0 129 2 0x00000000 [ 240.415867] Workqueue: events request_firmware_work_func [ 240.421138] Call trace: [ 240.423589] [<ffffffc000205760>] __switch_to+0x80/0x8c [ 240.428688] [<ffffffc00088dae0>] __schedule+0x540/0x7b8 [ 240.433886] [<ffffffc00088ddd0>] schedule+0x78/0x84 [ 240.438732] [<ffffffc0006dfd48>] __mmc_claim_host+0xe8/0x1c8 [ 240.444361] [<ffffffc0006edd6c>] sdio_claim_host+0x74/0x84 [ 240.449801] [<ffffffbffc163d08>] 0xffffffbffc163d08 [ 240.454649] [<ffffffbffc165104>] 0xffffffbffc165104 [ 240.459486] [<ffffffbffc130cf8>] mwifiex_dnld_fw+0x98/0x110 [mwifiex] [ 240.465882] [<ffffffbffc12ee88>] mwifiex_remove_card+0x2c4/0x5fc [mwifiex] [ 240.472705] [<ffffffc000596780>] request_firmware_work_func+0x44/0x80 [ 240.479090] [<ffffffc00023b934>] process_one_work+0x2ec/0x50c [ 240.484794] [<ffffffc00023c6a0>] worker_thread+0x350/0x470 [ 240.490231] [<ffffffc0002419bc>] kthread+0xf0/0xfc This patch adds missing sdio_release_host() call so that wlan driver thread can claim sdio host. Fixes: 4863e4cc31d647e1 ("Bluetooth: btmrvl: release sdio bus after firmware is up") Signed-off-by: Chin-Ran Lo <crlo@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/btmrvl_sdio.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index d3a4acdf98c9..73a1c2779969 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -1112,7 +1112,8 @@ static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
*/
if (btmrvl_sdio_verify_fw_download(card, pollnum)) {
BT_ERR("FW failed to be active in time!");
- return -ETIMEDOUT;
+ ret = -ETIMEDOUT;
+ goto done;
}
sdio_release_host(card->func);