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x86/uprobes: Convert to insn_decode() 

Simplify code, no functional changes.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210304174237.31945-16-bp@alien8.de
This commit is contained in:
Borislav Petkov 2020-11-17 15:26:12 +01:00
parent 0be7f42d6f
commit 88afc23922
1 changed files with 4 additions and 4 deletions
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8
arch/x86/kernel/uprobes.c
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@ -276,12 +276,12 @@ static bool is_prefix_bad(struct insn *insn)
static int uprobe_init_insn(struct arch_uprobe *auprobe, struct insn *insn, bool x86_64)
{
enum insn_mode m = x86_64 ? INSN_MODE_64 : INSN_MODE_32;
u32 volatile *good_insns;
int ret;
insn_init(insn, auprobe->insn, sizeof(auprobe->insn), x86_64);
/* has the side-effect of processing the entire instruction */
insn_get_length(insn);
if (!insn_complete(insn))
ret = insn_decode(insn, auprobe->insn, sizeof(auprobe->insn), m);
if (ret < 0)
return -ENOEXEC;
if (is_prefix_bad(insn))