kconfig: Use PATH_MAX instead of 128 for path buffer sizes.

This prevents the buffers being overflowed when using a config
file with a long name. PATH_MAX is used elsewhere in the same
file, so use it here as well.

Signed-off-by: Will Newton <will.newton@imgtec.com>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

1 files changed, 2 insertions, 2 deletions

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 35c08ecaad17..96110ea41cf3 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -535,7 +535,7 @@ int conf_write(const char *name)
         struct menu *menu;
         const char *basename;
         const char *str;
-        char dirname[128], tmpname[128], newname[128];
+        char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1];
         enum symbol_type type;
         time_t now;
         int use_timestamp = 1;
@@ -654,7 +654,7 @@ next:
 static int conf_split_config(void)
 {
         const char *name;
-        char path[128];
+        char path[PATH_MAX+1];
         char *s, *d, c;
         struct symbol *sym;
         struct stat sb;