diff options
| -rw-r--r-- | include/linux/parser.h | 1 | ||||
| -rw-r--r-- | lib/parser.c | 22 |
2 files changed, 23 insertions, 0 deletions
diff --git a/include/linux/parser.h b/include/linux/parser.h index 89e2b23fb888..dd79f45a37b8 100644 --- a/include/linux/parser.h +++ b/include/linux/parser.h @@ -29,6 +29,7 @@ typedef struct { int match_token(char *, const match_table_t table, substring_t args[]); int match_int(substring_t *, int *result); +int match_uint(substring_t *s, unsigned int *result); int match_u64(substring_t *, u64 *result); int match_octal(substring_t *, int *result); int match_hex(substring_t *, int *result); diff --git a/lib/parser.c b/lib/parser.c index f5b3e5d7a7f9..7785e41fa5eb 100644 --- a/lib/parser.c +++ b/lib/parser.c @@ -188,6 +188,28 @@ int match_int(substring_t *s, int *result) } EXPORT_SYMBOL(match_int); +/* + * match_uint - scan a decimal representation of an integer from a substring_t + * @s: substring_t to be scanned + * @result: resulting integer on success + * + * Description: Attempts to parse the &substring_t @s as a decimal integer. On + * success, sets @result to the integer represented by the string and returns 0. + * Returns -ENOMEM, -EINVAL, or -ERANGE on failure. + */ +int match_uint(substring_t *s, unsigned int *result) +{ + int err = -ENOMEM; + char *buf = match_strdup(s); + + if (buf) { + err = kstrtouint(buf, 10, result); + kfree(buf); + } + return err; +} +EXPORT_SYMBOL(match_uint); + /** * match_u64: - scan a decimal representation of a u64 from * a substring_t |