| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.6 57/73] dmaengine: ti: k3-psil: fix deadlock on error path | Date | Mon, 4 May 2020 19:58:00 +0200 |
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From: Grygorii Strashko <grygorii.strashko@ti.com>
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@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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- 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);
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