diff options
| author | Mark Brown <broonie@kernel.org> | 2021-09-20 15:56:58 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-09-21 15:23:35 +0100 |
| commit | ffb1e76f4f32d2b8ea4189df0484980370476395 (patch) | |
| tree | c62376eab558809973dc5b71806df07c388bfc1a /kernel/params.c | |
| parent | 2bab94090b01bc593d8bc25f68df41f198721173 (diff) | |
| parent | e4e737bb5c170df6135a127739a9e6148ee3da82 (diff) | |
| download | cachepc-linux-ffb1e76f4f32d2b8ea4189df0484980370476395.tar.gz cachepc-linux-ffb1e76f4f32d2b8ea4189df0484980370476395.zip | |
Merge tag 'v5.15-rc2' into spi-5.15
Linux 5.15-rc2
Diffstat (limited to 'kernel/params.c')
| -rw-r--r-- | kernel/params.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/kernel/params.c b/kernel/params.c index 2daa2780a92c..8299bd764e42 100644 --- a/kernel/params.c +++ b/kernel/params.c @@ -243,6 +243,24 @@ STANDARD_PARAM_DEF(ulong, unsigned long, "%lu", kstrtoul); STANDARD_PARAM_DEF(ullong, unsigned long long, "%llu", kstrtoull); STANDARD_PARAM_DEF(hexint, unsigned int, "%#08x", kstrtouint); +int param_set_uint_minmax(const char *val, const struct kernel_param *kp, + unsigned int min, unsigned int max) +{ + unsigned int num; + int ret; + + if (!val) + return -EINVAL; + ret = kstrtouint(val, 0, &num); + if (ret) + return ret; + if (num < min || num > max) + return -EINVAL; + *((unsigned int *)kp->arg) = num; + return 0; +} +EXPORT_SYMBOL_GPL(param_set_uint_minmax); + int param_set_charp(const char *val, const struct kernel_param *kp) { if (strlen(val) > 1024) { |