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authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2021-06-11 13:23:21 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-06-11 13:34:04 +0300
commit63879e2964bceee2aa5bbe8b99ea58bba28bb64f (patch)
treef1c9c43ea115fcf9f15306898928d372055753ea /drivers/nvmem
parentfd307a4ad332ef50be5569c92490219e7cd84ce5 (diff)
downloadlinux-63879e2964bceee2aa5bbe8b99ea58bba28bb64f.tar.xz
nvmem: core: add a missing of_node_put
'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: <stable@vger.kernel.org> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20210611102321.11509-1-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/nvmem')
-rw-r--r--drivers/nvmem/core.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 4d1c4f83b22f..20799e622b5b 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -690,15 +690,17 @@ 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);
@@ -719,11 +721,12 @@ 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);
}