path: root/arch/parisc
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authorTejun Heo <htejun@gmail.com>2007-07-17 04:03:51 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-17 10:23:03 -0700
commit9281acea6a3687ff0f262e0be31eac34895b95d7 (patch)
treef060d6e4f6a5da1c82bc789104683d39377a2e9a /arch/parisc
parentb45d52797432bd6b5d9786dbda940eb8d0b9ed06 (diff)
kallsyms: make KSYM_NAME_LEN include space for trailing '\0'
KSYM_NAME_LEN is peculiar in that it does not include the space for the trailing '\0', forcing all users to use KSYM_NAME_LEN + 1 when allocating buffer. This is nonsense and error-prone. Moreover, when the caller forgets that it's very likely to subtly bite back by corrupting the stack because the last position of the buffer is always cleared to zero. This patch increments KSYM_NAME_LEN by one and updates code accordingly. * off-by-one bug in asm-powerpc/kprobes.h::kprobe_lookup_name() macro is fixed. * Where MODULE_NAME_LEN and KSYM_NAME_LEN were used together, MODULE_NAME_LEN was treated as if it didn't include space for the trailing '\0'. Fix it. Signed-off-by: Tejun Heo <htejun@gmail.com> Acked-by: Paulo Marques <pmarques@grupopie.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/parisc')
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 322167737de..cf780cb3b91 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -242,7 +242,7 @@ static void unwind_frame_regs(struct unwind_frame_info *info)
/* Handle some frequent special cases.... */
- char symname[KSYM_NAME_LEN+1];
+ char symname[KSYM_NAME_LEN];
char *modname;
kallsyms_lookup(info->ip, NULL, NULL, &modname,