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| author | Grygorii Strashko <grygorii.strashko@ti.com> | 2020-04-08 21:55:01 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-04-15 21:38:28 +0530 |
| commit | 172d59ecd61b89f535ad99a7e531c0f111453b9a (patch) | |
| tree | f7efc3a6f7880f2af625fc25469bf3f2576405ef | |
| parent | ae148b43516d90756ff8255925fb7df142b0c76e (diff) | |
| download | linux-stable-172d59ecd61b89f535ad99a7e531c0f111453b9a.tar.gz linux-stable-172d59ecd61b89f535ad99a7e531c0f111453b9a.tar.bz2 linux-stable-172d59ecd61b89f535ad99a7e531c0f111453b9a.zip | |
dmaengine: ti: k3-psil: fix deadlock on error path
The mutex_unlock() is missed on error path of psil_get_ep_config()
which causes deadlock, so add missed mutex_unlock().
Fixes: 8c6bb62f6b4a ("dmaengine: ti: k3 PSI-L remote endpoint configuration")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200408185501.30776-1-grygorii.strashko@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
| -rw-r--r-- | drivers/dma/ti/k3-psil.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma/ti/k3-psil.c b/drivers/dma/ti/k3-psil.c index d7b965049ccb..fb7c8150b0d1 100644 --- a/drivers/dma/ti/k3-psil.c +++ b/drivers/dma/ti/k3-psil.c @@ -27,6 +27,7 @@ struct psil_endpoint_config *psil_get_ep_config(u32 thread_id) soc_ep_map = &j721e_ep_map; } else { pr_err("PSIL: No compatible machine found for map\n"); + mutex_unlock(&ep_map_mutex); return ERR_PTR(-ENOTSUPP); } pr_debug("%s: Using map for %s\n", __func__, soc_ep_map->name); |