powerpc/code-patching: Fix error handling in do_patch_instruction()
authorChristophe Leroy <christophe.leroy@csgroup.eu>
Thu, 2 Dec 2021 12:00:19 +0000 (13:00 +0100)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 23 Dec 2021 11:35:24 +0000 (22:35 +1100)
commit285672f99327d5b8febdf83cadba61a68abe5d69
treec2f0fa207e260b5847b1243da9ac303d9dcdef26
parentaf5304a7506588221d8317ef3f76585eb4483506
powerpc/code-patching: Fix error handling in do_patch_instruction()

Use real errors instead of using -1 as error, so that errors
returned by callees can be used towards callers.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/85259d894069e47f915ea580b169e1adbeec7a61.1638446239.git.christophe.leroy@csgroup.eu
arch/powerpc/lib/code-patching.c