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kallsyms: Handle too long symbols in kallsyms.c

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[ Upstream commit 6db2983cd8064808141ccefd75218f5b4345ffae ]

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

Fixes: f3462aa952 ("Kbuild: Handle longer symbols in kallsyms.c")
Signed-off-by: Eugene Loh <eugene.loh@oracle.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Eugene Loh 2019-01-17 14:46:00 -08:00 committed by Greg Kroah-Hartman
parent 980f44f8dd
commit cacf3c0d82
1 changed files with 2 additions and 2 deletions
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4
scripts/kallsyms.c
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@ -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;