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path: root/drivers/nvmem/core.c
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Diffstat (limited to 'drivers/nvmem/core.c')
-rw-r--r--drivers/nvmem/core.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index eb357ac2e54a..2c6b99402df8 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -807,6 +807,11 @@ static int nvmem_add_cells_from_dt(struct nvmem_device *nvmem, struct device_nod
if (addr && len == (2 * sizeof(u32))) {
info.bit_offset = be32_to_cpup(addr++);
info.nbits = be32_to_cpup(addr);
+ if (info.bit_offset >= BITS_PER_BYTE || info.nbits < 1) {
+ dev_err(dev, "nvmem: invalid bits on %pOF\n", child);
+ of_node_put(child);
+ return -EINVAL;
+ }
}
info.np = of_node_get(child);