diff options
| author | Tomasz Nowicki <tomasz.nowicki@linaro.org> | 2014-11-26 22:01:14 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-11-27 02:07:41 +0100 |
| commit | 4ceacd02f5a1795c5c697e0345ee10beef675290 (patch) | |
| tree | 168a8638a12acff9ee059fcfd24818d4df17393f /drivers/acpi/tables.c | |
| parent | f08bb472bff3c0397fb7d6f47bc5cec41dad76e3 (diff) | |
| download | linux-4ceacd02f5a1795c5c697e0345ee10beef675290.tar.bz2 | |
ACPI / table: Always count matched and successfully parsed entries
acpi_parse_entries() allows to traverse all available table entries (aka
subtables) by passing max_entries parameter equal to 0, but since its count
variable is only incremented if max_entries is not 0, the function always
returns 0 for max_entries equal to 0. It would be more useful if it returned
the number of entries matched instead, so make it increment count in that
case too.
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/tables.c')
| -rw-r--r-- | drivers/acpi/tables.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index f1debe97dcfc..93b81523a2fe 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -224,10 +224,13 @@ acpi_parse_entries(char *id, unsigned long table_size, while (((unsigned long)entry) + sizeof(struct acpi_subtable_header) < table_end) { if (entry->type == entry_id - && (!max_entries || count++ < max_entries)) + && (!max_entries || count < max_entries)) { if (handler(entry, table_end)) return -EINVAL; + count++; + } + /* * If entry->length is 0, break from this loop to avoid * infinite loop. |