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s390/dis: Fix printing of the register numbers

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Since commit b006f19b05 ("lib/vsprintf.c: handle invalid format
specifiers more robustly") I get errors like
[...]
Krnl Code: 00000000004e2410: c00400000000        brcl 0,4e2410
Please remove unsupported %r in format string
[    8.179483] ------------[ cut here ]------------
[    8.179484] WARNING: at lib/vsprintf.c:1781

Turns out that our disassembler relied on %r not being used as format
string. Let's do the proper escaping of our decode buffers.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Christian Borntraeger 2015-11-18 17:00:10 +01:00 committed by Martin Schwidefsky
parent 155eeb66d2
commit 561e103002
1 changed files with 2 additions and 2 deletions
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4
arch/s390/kernel/dis.c
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@ -2015,7 +2015,7 @@ void show_code(struct pt_regs *regs)
*ptr++ = '\t';
ptr += print_insn(ptr, code + start, addr);
start += opsize;
printk(buffer);
printk("%s", buffer);
ptr = buffer;
ptr += sprintf(ptr, "\n ");
hops++;
@ -2042,7 +2042,7 @@ void print_fn_code(unsigned char *code, unsigned long len)
ptr += print_insn(ptr, code, (unsigned long) code);
*ptr++ = '\n';
*ptr++ = 0;
printk(buffer);
printk("%s", buffer);
code += opsize;
len -= opsize;
}