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authorMarkus Elfring <elfring@users.sourceforge.net>2017-01-20 11:00:08 +0100
committerPaul Mackerras <paulus@ozlabs.org>2017-04-20 11:37:50 +1000
commita1c52e1c7cb9fb8714b89b7bb5773c498e39e38b (patch)
treede5b5edd102109865ccc2b0d75cbb877245e450f /arch/powerpc/kvm
parent9b5ab0051306033b0b1e83dd72e1f84a0c8dd4bf (diff)
KVM: PPC: Book3S HV: Use common error handling code in kvmppc_clr_passthru_irq()
Add a jump target so that a bit of exception handling can be better reused at the end of this function. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/powerpc/kvm')
-rw-r--r--arch/powerpc/kvm/book3s_hv.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 1ec86d9e2a82..06b7d8ae27e5 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -3624,11 +3624,9 @@ static int kvmppc_clr_passthru_irq(struct kvm *kvm, int host_irq, int guest_gsi)
return -EIO;
mutex_lock(&kvm->lock);
+ if (!kvm->arch.pimap)
+ goto unlock;
- if (kvm->arch.pimap == NULL) {
- mutex_unlock(&kvm->lock);
- return 0;
- }
pimap = kvm->arch.pimap;
for (i = 0; i < pimap->n_mapped; i++) {
@@ -3650,7 +3648,7 @@ static int kvmppc_clr_passthru_irq(struct kvm *kvm, int host_irq, int guest_gsi)
* We don't free this structure even when the count goes to
* zero. The structure is freed when we destroy the VM.
*/
-
+ unlock:
mutex_unlock(&kvm->lock);
return 0;
}