[PATCH v1] nvmem: core: update cell->bytes after shifting bits

From: Emil Renner Berthing

Date: Tue Sep 30 2025 - 10:22:22 EST


When support for bit offsets of more than one byte was added it
unfortunately left the cell->bytes value at the number of bytes read
including the offset. Make sure to update it to the proper number of
meaningful bytes in the returned data.

Fixes: 7a06ef751077 ("nvmem: core: fix bit offsets of more than one byte")
Signed-off-by: Emil Renner Berthing <emil.renner.berthing@xxxxxxxxxxxxx>
---
drivers/nvmem/core.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 387c88c55259..5f6d22545e39 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -1640,6 +1640,8 @@ static void nvmem_shift_read_buffer_in_place(struct nvmem_cell_entry *cell, void
/* clear msb bits if any leftover in the last byte */
if (cell->nbits % BITS_PER_BYTE)
*p &= GENMASK((cell->nbits % BITS_PER_BYTE) - 1, 0);
+
+ cell->bytes = (p - (u8 *)buf) + 1;
}

static int __nvmem_cell_read(struct nvmem_device *nvmem,
--
2.43.0