From 588773802c386d38f9c4e91acd47369e89d95a30 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= <linux@weissschuh.net>
Date: Fri, 5 Jul 2024 08:48:48 +0100
Subject: [PATCH] nvmem: core: drop unnecessary range checks in sysfs callbacks
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The same checks have already been done in sysfs_kf_bin_write() and
sysfs_kf_bin_read() just before the callbacks are invoked.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20240705074852.423202-12-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/nvmem/core.c | 14 --------------
 1 file changed, 14 deletions(-)

--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -203,19 +203,12 @@ static ssize_t bin_attr_nvmem_read(struc
 		dev = kobj_to_dev(kobj);
 	nvmem = to_nvmem_device(dev);
 
-	/* Stop the user from reading */
-	if (pos >= nvmem->size)
-		return 0;
-
 	if (!IS_ALIGNED(pos, nvmem->stride))
 		return -EINVAL;
 
 	if (count < nvmem->word_size)
 		return -EINVAL;
 
-	if (pos + count > nvmem->size)
-		count = nvmem->size - pos;
-
 	count = round_down(count, nvmem->word_size);
 
 	if (!nvmem->reg_read)
@@ -243,19 +236,12 @@ static ssize_t bin_attr_nvmem_write(stru
 		dev = kobj_to_dev(kobj);
 	nvmem = to_nvmem_device(dev);
 
-	/* Stop the user from writing */
-	if (pos >= nvmem->size)
-		return -EFBIG;
-
 	if (!IS_ALIGNED(pos, nvmem->stride))
 		return -EINVAL;
 
 	if (count < nvmem->word_size)
 		return -EINVAL;
 
-	if (pos + count > nvmem->size)
-		count = nvmem->size - pos;
-
 	count = round_down(count, nvmem->word_size);
 
 	if (!nvmem->reg_write)
