From: Mathieu Poirier mathieu.poirier@linaro.org
commit ccadca5baf5124a880f2bb50ed1ec265415f025b upstream.
Function of_phandle_iterator_next() calls of_node_put() on the last device_node it iterated over, but when the loop exits prematurely it has to be called explicitly.
Fixes: 13140de09cc2 ("remoteproc: stm32: add an ST stm32_rproc driver") Cc: stable@vger.kernel.org Signed-off-by: Mathieu Poirier mathieu.poirier@linaro.org Reviewed-by: Arnaud Pouliquen arnaud.pouliquen@foss.st.com Link: https://lore.kernel.org/r/20230320221826.2728078-2-mathieu.poirier@linaro.or... Signed-off-by: Mathieu Poirier mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/remoteproc/stm32_rproc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/remoteproc/stm32_rproc.c +++ b/drivers/remoteproc/stm32_rproc.c @@ -223,11 +223,13 @@ static int stm32_rproc_prepare(struct rp while (of_phandle_iterator_next(&it) == 0) { rmem = of_reserved_mem_lookup(it.node); if (!rmem) { + of_node_put(it.node); dev_err(dev, "unable to acquire memory-region\n"); return -EINVAL; }
if (stm32_rproc_pa_to_da(rproc, rmem->base, &da) < 0) { + of_node_put(it.node); dev_err(dev, "memory region not valid %pa\n", &rmem->base); return -EINVAL; @@ -254,8 +256,10 @@ static int stm32_rproc_prepare(struct rp it.node->name); }
- if (!mem) + if (!mem) { + of_node_put(it.node); return -ENOMEM; + }
rproc_add_carveout(rproc, mem); index++;