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-rw-r--r--arch/s390/kernel/dis.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index 3ad5e9540160..7f4a4a8c847c 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -1696,14 +1696,15 @@ static struct insn *find_insn(unsigned char *code)
* insn_to_mnemonic - decode an s390 instruction
* @instruction: instruction to decode
* @buf: buffer to fill with mnemonic
+ * @len: length of buffer
*
* Decode the instruction at @instruction and store the corresponding
- * mnemonic into @buf.
+ * mnemonic into @buf of length @len.
* @buf is left unchanged if the instruction could not be decoded.
* Returns:
* %0 on success, %-ENOENT if the instruction was not found.
*/
-int insn_to_mnemonic(unsigned char *instruction, char buf[8])
+int insn_to_mnemonic(unsigned char *instruction, char *buf, unsigned int len)
{
struct insn *insn;
@@ -1711,10 +1712,10 @@ int insn_to_mnemonic(unsigned char *instruction, char buf[8])
if (!insn)
return -ENOENT;
if (insn->name[0] == '\0')
- snprintf(buf, 8, "%s",
+ snprintf(buf, len, "%s",
long_insn_name[(int) insn->name[1]]);
else
- snprintf(buf, 8, "%.5s", insn->name);
+ snprintf(buf, len, "%.5s", insn->name);
return 0;
}
EXPORT_SYMBOL_GPL(insn_to_mnemonic);