From: Grygorii Strashko <grygorii.strashko@xxxxxx>
commit 172d59ecd61b89f535ad99a7e531c0f111453b9a upstream.
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@xxxxxx>
Acked-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
Link: https://lore.kernel.org/r/20200408185501.30776-1-grygorii.strashko@xxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/dma/ti/k3-psil.c | 1 +
1 file changed, 1 insertion(+)
--- 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
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);
