Messages in this thread Patch in this message | | | From | Christophe Leroy <> | Subject | Re: [PATCH v1 06/11] powerpc/code-patching: Fix patch_branch() return on out-of-range failure | Date | Wed, 22 Dec 2021 13:16:06 +0000 |
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Le 02/12/2021 à 13:00, Christophe Leroy a écrit : > Do not silentely ignore a failure of create_branch() in > patch_branch(). Return -ERANGE. > > Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
From https://patchwork.ozlabs.org/project/linuxppc-dev/patch/4940b03de220d1dfe2c6b47a41e60925497ce125.1630657331.git.christophe.leroy@csgroup.eu/
Reviewed-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
> --- > arch/powerpc/lib/code-patching.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c > index a43ca22313ee..e7a2a41ae8eb 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); > } > >
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