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nvmem: imx-ocotp-ele: simplify read beyond device check

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BugLink: https://bugs.launchpad.net/bugs/2114239

commit 343aa1e289e8e3dba5e3d054c4eb27da7b4e1ecc upstream.

Do the read beyond device check on function entry in bytes instead of
32bit words which is easier to follow.

Fixes: 22e9e6fcfb ("nvmem: imx: support i.MX93 OCOTP")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: stable <stable@kernel.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20241230141901.263976-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Noah Wager <noah.wager@canonical.com>
Signed-off-by: Mehmet Basaran <mehmet.basaran@canonical.com>
This commit is contained in:
Sascha Hauer
2024-12-30 14:18:56 +00:00
committed by Mehmet Basaran
parent de4494f946
commit 71b10a38f7
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/nvmem/imx-ocotp-ele.c
+3 -3
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@@ -71,13 +71,13 @@ static int imx_ocotp_reg_read(void *context, unsigned int offset, void *val, siz
void *p;
int i;
if (offset + bytes > priv->data->size)
bytes = priv->data->size - offset;
index = offset;
num_bytes = round_up(bytes, 4);
count = num_bytes >> 2;
if (count > ((priv->data->size >> 2) - index))
count = (priv->data->size >> 2) - index;
p = kzalloc(num_bytes, GFP_KERNEL);
if (!p)
return -ENOMEM;