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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-07-16 09:09:24 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-07-16 09:09:24 +0200
commit500f0716b5f7fd6b0ff3d045588c7588ce2eee1d (patch)
tree05cfa2e77069af443f06bcfbf327f9aa2050eec7 /drivers/nvmem/core.c
parent4eb44f69e77141992e305d9e75e021b196071cdd (diff)
parent9d3cce1e8b8561fed5f383d22a4d6949db4eadbe (diff)
Merge 4.18-rc5 into usb-next
We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/nvmem/core.c')
-rw-r--r--drivers/nvmem/core.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index b5b0cdc21d01..514d1dfc5630 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -936,6 +936,10 @@ struct nvmem_cell *nvmem_cell_get(struct device *dev, const char *cell_id)
return cell;
}
+ /* NULL cell_id only allowed for device tree; invalid otherwise */
+ if (!cell_id)
+ return ERR_PTR(-EINVAL);
+
return nvmem_cell_get_from_list(cell_id);
}
EXPORT_SYMBOL_GPL(nvmem_cell_get);