ACPICA: Fix a couple issues with the local printf module.

ACPICA commit 6853da4c0a99b49d62d6c58d22956cd6ff5759a9

The following commit has fixed local printf issue in width.prec:

  Commit: 3589b8b8af6bdc3aafe520d76a73b77d965006b6
  Subject: ACPICA: Utilities: Fix local printf issue.

But this commit only resets width/precision/quialifier to fix the reported
issue and doesn't fix other states issues. So now we still can see breakage
in format types and integer bases.

This patch resets format type/base states for local printf to fix this
issue. Lv Zheng.

Linux kernel is not affected by this patch as acpi_ut_vsnprintf() hasn't
been enabled in the kernel.

Link: https://github.com/acpica/acpica/commit/6853da4c
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 8 insertions, 5 deletions

diff --git a/drivers/acpi/acpica/utprint.c b/drivers/acpi/acpica/utprint.c
index 82ca9142e10d..2be6bd4bdc09 100644
--- a/drivers/acpi/acpica/utprint.c
+++ b/drivers/acpi/acpica/utprint.c
@@ -357,11 +357,11 @@ int
 acpi_ut_vsnprintf(char *string,
                   acpi_size size, const char *format, va_list args)
 {
-        u8 base = 10;
-        u8 type = 0;
-        s32 width = -1;
-        s32 precision = -1;
-        char qualifier = 0;
+        u8 base;
+        u8 type;
+        s32 width;
+        s32 precision;
+        char qualifier;
         u64 number;
         char *pos;
         char *end;
@@ -380,6 +380,9 @@ acpi_ut_vsnprintf(char *string,
                         continue;
                 }
 
+                type = 0;
+                base = 10;
+
                 /* Process sign */
 
                 do {