From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
To: gregkh@linuxfoundation.org
Cc: linux-kernel@vger.kernel.org,
Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
stable@vger.kernel.org,
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Subject: [RESEND PATCH] nvmem: core: add a missing of_node_put
Date: Fri, 11 Jun 2021 11:23:21 +0100 [thread overview]
Message-ID: <20210611102321.11509-1-srinivas.kandagatla@linaro.org> (raw)
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
'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>
---
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
next reply other threads:[~2021-06-11 10:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-11 10:23 Srinivas Kandagatla [this message]
2021-06-11 10:34 ` [RESEND PATCH] nvmem: core: add a missing of_node_put Greg KH
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