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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-12-02 13:00:22 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-12-23 22:35:24 +1100 |
| commit | d5937db114e4b6446c62809484729955f1aeb108 (patch) | |
| tree | 705f3864eb8dc1d85e9a464eee8ef6492dcd4fe1 /arch/powerpc/lib | |
| parent | 6b21af74495b556f9d496d97d74e7a3d0ab16d7c (diff) | |
| download | linux-d5937db114e4b6446c62809484729955f1aeb108.tar.gz linux-d5937db114e4b6446c62809484729955f1aeb108.tar.bz2 linux-d5937db114e4b6446c62809484729955f1aeb108.zip | |
powerpc/code-patching: Fix patch_branch() return on out-of-range failure
Do not silentely ignore a failure of create_branch() in
patch_branch(). Return -ERANGE.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/8540cb64b1f06710eaf41e3835c7ba3e21fa2b05.1638446239.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/lib')
| -rw-r--r-- | arch/powerpc/lib/code-patching.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c index 3da7224fbd6e..998aeb9e1aac 100644 --- a/arch/powerpc/lib/code-patching.c +++ b/arch/powerpc/lib/code-patching.c @@ -191,7 +191,9 @@ int patch_branch(u32 *addr, unsigned long target, int flags) { ppc_inst_t instr; - create_branch(&instr, addr, target, flags); + if (create_branch(&instr, addr, target, flags)) + return -ERANGE; + return patch_instruction(addr, instr); } |