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| author | Deren Wu <deren.wu@mediatek.com> | 2022-12-04 16:24:16 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-07 12:07:35 +0100 |
| commit | 32d5af247d4de6a35769ca1d027480a37c28fd0c (patch) | |
| tree | 372257b1d6cc7be9365a9a16530dd0500f870160 | |
| parent | 732cd66ec19a17f2b9183d7d5b7bdb9c39b0776e (diff) | |
| download | linux-stable-32d5af247d4de6a35769ca1d027480a37c28fd0c.tar.gz linux-stable-32d5af247d4de6a35769ca1d027480a37c28fd0c.tar.bz2 linux-stable-32d5af247d4de6a35769ca1d027480a37c28fd0c.zip | |
mmc: vub300: fix warning - do not call blocking ops when !TASK_RUNNING
commit 4a44cd249604e29e7b90ae796d7692f5773dd348 upstream.
vub300_enable_sdio_irq() works with mutex and need TASK_RUNNING here.
Ensure that we mark current as TASK_RUNNING for sleepable context.
[ 77.554641] do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff92a72c1d>] sdio_irq_thread+0x17d/0x5b0
[ 77.554652] WARNING: CPU: 2 PID: 1983 at kernel/sched/core.c:9813 __might_sleep+0x116/0x160
[ 77.554905] CPU: 2 PID: 1983 Comm: ksdioirqd/mmc1 Tainted: G OE 6.1.0-rc5 #1
[ 77.554910] Hardware name: Intel(R) Client Systems NUC8i7BEH/NUC8BEB, BIOS BECFL357.86A.0081.2020.0504.1834 05/04/2020
[ 77.554912] RIP: 0010:__might_sleep+0x116/0x160
[ 77.554920] RSP: 0018:ffff888107b7fdb8 EFLAGS: 00010282
[ 77.554923] RAX: 0000000000000000 RBX: ffff888118c1b740 RCX: 0000000000000000
[ 77.554926] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffed1020f6ffa9
[ 77.554928] RBP: ffff888107b7fde0 R08: 0000000000000001 R09: ffffed1043ea60ba
[ 77.554930] R10: ffff88821f5305cb R11: ffffed1043ea60b9 R12: ffffffff93aa3a60
[ 77.554932] R13: 000000000000011b R14: 7fffffffffffffff R15: ffffffffc0558660
[ 77.554934] FS: 0000000000000000(0000) GS:ffff88821f500000(0000) knlGS:0000000000000000
[ 77.554937] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 77.554939] CR2: 00007f8a44010d68 CR3: 000000024421a003 CR4: 00000000003706e0
[ 77.554942] Call Trace:
[ 77.554944] <TASK>
[ 77.554952] mutex_lock+0x78/0xf0
[ 77.554973] vub300_enable_sdio_irq+0x103/0x3c0 [vub300]
[ 77.554981] sdio_irq_thread+0x25c/0x5b0
[ 77.555006] kthread+0x2b8/0x370
[ 77.555017] ret_from_fork+0x1f/0x30
[ 77.555023] </TASK>
[ 77.555025] ---[ end trace 0000000000000000 ]---
Fixes: 88095e7b473a ("mmc: Add new VUB300 USB-to-SD/SDIO/MMC driver")
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/87dc45b122d26d63c80532976813c9365d7160b3.1670140888.git.deren.wu@mediatek.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/mmc/host/vub300.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/host/vub300.c b/drivers/mmc/host/vub300.c index d962e88572a1..58d3a22ba8dc 100644 --- a/drivers/mmc/host/vub300.c +++ b/drivers/mmc/host/vub300.c @@ -2056,6 +2056,7 @@ static void vub300_enable_sdio_irq(struct mmc_host *mmc, int enable) return; kref_get(&vub300->kref); if (enable) { + set_current_state(TASK_RUNNING); mutex_lock(&vub300->irq_mutex); if (vub300->irqs_queued) { vub300->irqs_queued -= 1; @@ -2071,6 +2072,7 @@ static void vub300_enable_sdio_irq(struct mmc_host *mmc, int enable) vub300_queue_poll_work(vub300, 0); } mutex_unlock(&vub300->irq_mutex); + set_current_state(TASK_INTERRUPTIBLE); } else { vub300->irq_enabled = 0; } |