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authorDouglas Anderson <dianders@chromium.org>2021-06-11 09:33:47 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-06-11 10:57:56 +0200
commit1f7b4d87874624f4beb25253900a25306a193b8b (patch)
treef1d0e27c6712cbab7568c67fe26a2a01c7e7f399 /drivers/nvmem
parentc813bb37bd32cb967060a2c573fae4ea518d32eb (diff)
downloadlinux-1f7b4d87874624f4beb25253900a25306a193b8b.tar.gz
nvmem: core: constify nvmem_cell_read_variable_common() return value
The caller doesn't modify the memory pointed to by the pointer so it
can be const.

Suggested-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210611083348.20170-9-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/nvmem')
-rw-r--r--drivers/nvmem/core.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index bca671ff4e54..b3c28a2d4c10 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -1606,9 +1606,9 @@ int nvmem_cell_read_u64(struct device *dev, const char *cell_id, u64 *val)
 }
 EXPORT_SYMBOL_GPL(nvmem_cell_read_u64);
 
-static void *nvmem_cell_read_variable_common(struct device *dev,
-					     const char *cell_id,
-					     size_t max_len, size_t *len)
+static const void *nvmem_cell_read_variable_common(struct device *dev,
+						   const char *cell_id,
+						   size_t max_len, size_t *len)
 {
 	struct nvmem_cell *cell;
 	int nbits;
@@ -1652,7 +1652,7 @@ int nvmem_cell_read_variable_le_u32(struct device *dev, const char *cell_id,
 				    u32 *val)
 {
 	size_t len;
-	u8 *buf;
+	const u8 *buf;
 	int i;
 
 	buf = nvmem_cell_read_variable_common(dev, cell_id, sizeof(*val), &len);
@@ -1683,7 +1683,7 @@ int nvmem_cell_read_variable_le_u64(struct device *dev, const char *cell_id,
 				    u64 *val)
 {
 	size_t len;
-	u8 *buf;
+	const u8 *buf;
 	int i;
 
 	buf = nvmem_cell_read_variable_common(dev, cell_id, sizeof(*val), &len);