[RESEND PATCH] nvmem: core: add a missing of_node_put
From: Srinivas Kandagatla <hidden>
Date: 2021-06-11 10:23:46
Also in:
lkml
Subsystem:
nvmem framework, the rest · Maintainers:
Srinivas Kandagatla, Linus Torvalds
From: Christophe JAILLET <redacted>
'for_each_child_of_node' performs an of_node_get on each iteration, so a
return from the middle of the loop requires an of_node_put.
Fixes: e888d445ac33 ("nvmem: resolve cells from DT at registration time")
Cc: <redacted>
Signed-off-by: Christophe JAILLET <redacted>
Signed-off-by: Srinivas Kandagatla <redacted>
---
Hi Greg,
Resending just this one with cc stable as rest of nvmem series are already applied.
thanks,
srini
drivers/nvmem/core.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index b3c28a2d4c10..4868aa876e1b 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c@@ -686,15 +686,17 @@ static int nvmem_add_cells_from_of(struct nvmem_device *nvmem) continue; if (len < 2 * sizeof(u32)) { dev_err(dev, "nvmem: invalid reg on %pOF\n", child); + of_node_put(child); return -EINVAL; } cell = kzalloc(sizeof(*cell), GFP_KERNEL); - if (!cell) + if (!cell) { + of_node_put(child); return -ENOMEM; + } cell->nvmem = nvmem; - cell->np = of_node_get(child); cell->offset = be32_to_cpup(addr++); cell->bytes = be32_to_cpup(addr); cell->name = kasprintf(GFP_KERNEL, "%pOFn", child);
@@ -715,11 +717,12 @@ static int nvmem_add_cells_from_of(struct nvmem_device *nvmem) cell->name, nvmem->stride); /* Cells already added will be freed later. */ kfree_const(cell->name); - of_node_put(cell->np); kfree(cell); + of_node_put(child); return -EINVAL; } + cell->np = of_node_get(child); nvmem_cell_add(cell); }
--
2.21.0