Commit ac3d6a4b authored by Joel Granados's avatar Joel Granados
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sysctl: clarify proc_douintvec_minmax doc 



Specify that the range check is only when assigning kernel variable

Signed-off-by: default avatarJoel Granados <joel.granados@kernel.org>
parent 11400f86

kernel/sysctl.c

+4 −4
Original line number Diff line number Diff line
@@ -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