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sysctl: clarify proc_douintvec_minmax doc

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Specify that the range check is only when assigning kernel variable

Signed-off-by: Joel Granados <joel.granados@kernel.org>
This commit is contained in:
Joel Granados 2025-11-28 22:47:54 +01:00
parent 11400f86c2
commit ac3d6a4b60
1 changed files with 4 additions and 4 deletions
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8
kernel/sysctl.c
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@ -692,10 +692,10 @@ int proc_dointvec_minmax(const struct ctl_table *table, int dir,
* values from/to the user buffer, treated as an ASCII string. Negative
* strings are not allowed.
*
* This routine will ensure the values are within the range specified by
* table->extra1 (min) and table->extra2 (max). There is a final sanity
* check for UINT_MAX to avoid having to support wrap around uses from
* userspace.
* When changing the kernel variable, this routine will ensure the values
* are within the range specified by table->extra1 (min) and table->extra2
* (max). And Check that the values are less than UINT_MAX to avoid having to
* support wrap around uses from userspace.
*
* Returns 0 on success or -ERANGE when range check failes and
* SYSCTL_USER_TO_KERN(dir) == true