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Message-Id: <20241023-imx-ele-ocotp-fixes-v1-1-4adc00ce288f@pengutronix.de> Date: Wed, 23 Oct 2024 10:12:28 +0200 From: Sascha Hauer <s.hauer@...gutronix.de> To: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>, Shawn Guo <shawnguo@...nel.org>, Pengutronix Kernel Team <kernel@...gutronix.de>, Fabio Estevam <festevam@...il.com> Cc: imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, Sascha Hauer <s.hauer@...gutronix.de> Subject: [PATCH 1/4] nvmem: imx-ocotp-ele: simplify read beyond device check Do the read beyond device check on function entry in bytes instead of 32bit words which is easier to follow. Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de> --- drivers/nvmem/imx-ocotp-ele.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/nvmem/imx-ocotp-ele.c b/drivers/nvmem/imx-ocotp-ele.c index 1ba4944976987..2e186b7d3b040 100644 --- a/drivers/nvmem/imx-ocotp-ele.c +++ b/drivers/nvmem/imx-ocotp-ele.c @@ -72,13 +72,13 @@ 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; -- 2.39.5
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