6.9-stable review patch. If anyone has any objections, please let me know.
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From: Christophe JAILLET christophe.jaillet@wanadoo.fr
[ Upstream commit b52e8cd3f835869370f8540f1bc804a47a47f02b ]
The return value of kvmppc_gse_put_buff_info() is not assigned to 'rc' and 'rc' is uninitialized at this point. So the error handling can not work.
Assign the expected value to 'rc' to fix the issue.
Fixes: 19d31c5f1157 ("KVM: PPC: Add support for nestedv2 guests") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Reviewed-by: Vaibhav Jain vaibhav@linux.ibm.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://msgid.link/a7ed4cc12e0a0bbd97fac44fe6c222d1c393ec95.1706441651.git.c... Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/kvm/book3s_hv_nestedv2.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_hv_nestedv2.c b/arch/powerpc/kvm/book3s_hv_nestedv2.c index 8e6f5355f08b5..1091f7a83b255 100644 --- a/arch/powerpc/kvm/book3s_hv_nestedv2.c +++ b/arch/powerpc/kvm/book3s_hv_nestedv2.c @@ -71,8 +71,8 @@ gs_msg_ops_kvmhv_nestedv2_config_fill_info(struct kvmppc_gs_buff *gsb, }
if (kvmppc_gsm_includes(gsm, KVMPPC_GSID_RUN_OUTPUT)) { - kvmppc_gse_put_buff_info(gsb, KVMPPC_GSID_RUN_OUTPUT, - cfg->vcpu_run_output_cfg); + rc = kvmppc_gse_put_buff_info(gsb, KVMPPC_GSID_RUN_OUTPUT, + cfg->vcpu_run_output_cfg); if (rc < 0) return rc; }