[PATCH AUTOSEL 4.19 02/48] kallsyms: Handle too long symbols in kallsyms.c

[Sasha Levin]

From: Eugene Loh <eugene....@oracle.com>

[ Upstream commit 6db2983cd8064808141ccefd75218f5b4345ffae ]

When checking for symbols with excessively long names,
account for null terminating character.

Fixes: f3462aa952cf ("Kbuild: Handle longer symbols in kallsyms.c")
Signed-off-by: Eugene Loh <eugene....@oracle.com>
Acked-by: Ard Biesheuvel <ard.biesheu...@linaro.org>
Signed-off-by: Masahiro Yamada <yamada.masah...@socionext.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 scripts/kallsyms.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index a9186a98a37d..0c9c54b57515 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -120,8 +120,8 @@ static int read_symbol(FILE *in, struct sym_entry *s)
                        fprintf(stderr, "Read error or end of file.\n");
                return -1;
        }
-       if (strlen(sym) > KSYM_NAME_LEN) {
-               fprintf(stderr, "Symbol %s too long for kallsyms (%zu vs %d).\n"
+       if (strlen(sym) >= KSYM_NAME_LEN) {
+               fprintf(stderr, "Symbol %s too long for kallsyms (%zu >= %d).\n"
                                "Please increase KSYM_NAME_LEN both in kernel 
and kallsyms.c\n",
                        sym, strlen(sym), KSYM_NAME_LEN);
                return -1;
-- 
2.19.1