[PATCH 5/9] target/ppc: use Error pointer in kvmppc_get_clockfreq()

[Daniel Henrique Barboza <danielhb413@gmail.com>]

Callers will then be able to handle any errors that might happen when
reading the clock frequency.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
---
 hw/ppc/e500.c          | 2 +-
 hw/ppc/ppc440_bamboo.c | 2 +-
 hw/ppc/sam460ex.c      | 2 +-
 hw/ppc/spapr.c         | 2 +-
 target/ppc/kvm.c       | 4 ++--
 target/ppc/kvm_ppc.h   | 2 +-
 6 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
index 7f7f5b3452..4b4e99ef3c 100644
--- a/hw/ppc/e500.c
+++ b/hw/ppc/e500.c
@@ -405,7 +405,7 @@ static int ppce500_load_device_tree(PPCE500MachineState *pms,
 
     if (kvm_enabled()) {
         /* Read out host's frequencies */
-        clock_freq = kvmppc_get_clockfreq();
+        clock_freq = kvmppc_get_clockfreq(NULL);
         tb_freq = kvmppc_get_tbfreq();
 
         /* indicate KVM hypercall interface */
diff --git a/hw/ppc/ppc440_bamboo.c b/hw/ppc/ppc440_bamboo.c
index d5973f2484..d23f881d9d 100644
--- a/hw/ppc/ppc440_bamboo.c
+++ b/hw/ppc/ppc440_bamboo.c
@@ -107,7 +107,7 @@ static int bamboo_load_device_tree(hwaddr addr,
      * the correct frequencies. */
     if (kvm_enabled()) {
         tb_freq = kvmppc_get_tbfreq();
-        clock_freq = kvmppc_get_clockfreq();
+        clock_freq = kvmppc_get_clockfreq(NULL);
     }
 
     qemu_fdt_setprop_cell(fdt, "/cpus/cpu@0", "clock-frequency",
diff --git a/hw/ppc/sam460ex.c b/hw/ppc/sam460ex.c
index 2f24598f55..4d25cb2c2e 100644
--- a/hw/ppc/sam460ex.c
+++ b/hw/ppc/sam460ex.c
@@ -179,7 +179,7 @@ static int sam460ex_load_device_tree(hwaddr addr,
      * the correct frequencies. */
     if (kvm_enabled()) {
         tb_freq = kvmppc_get_tbfreq();
-        clock_freq = kvmppc_get_clockfreq();
+        clock_freq = kvmppc_get_clockfreq(NULL);
     }
 
     qemu_fdt_setprop_cell(fdt, "/cpus/cpu@0", "clock-frequency",
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index fd4942e881..f66e3cbe38 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -654,7 +654,7 @@ static void spapr_dt_cpu(CPUState *cs, void *fdt, int offset,
                        0xffffffff, 0xffffffff};
     uint32_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq()
         : SPAPR_TIMEBASE_FREQ;
-    uint32_t cpufreq = kvm_enabled() ? kvmppc_get_clockfreq() : 1000000000;
+    uint32_t cpufreq = kvm_enabled() ? kvmppc_get_clockfreq(NULL) : 1000000000;
     uint32_t page_sizes_prop[64];
     size_t page_sizes_prop_size;
     unsigned int smp_threads = ms->smp.threads;
diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c
index c218380eb7..2accd1f946 100644
--- a/target/ppc/kvm.c
+++ b/target/ppc/kvm.c
@@ -1945,9 +1945,9 @@ static uint64_t kvmppc_read_int_cpu_dt(const char *propname, Error **errp)
     return kvmppc_read_int_dt(tmp, errp);
 }
 
-uint64_t kvmppc_get_clockfreq(void)
+uint64_t kvmppc_get_clockfreq(Error **errp)
 {
-    return kvmppc_read_int_cpu_dt("clock-frequency", NULL);
+    return kvmppc_read_int_cpu_dt("clock-frequency", errp);
 }
 
 static int kvmppc_get_dec_bits(void)
diff --git a/target/ppc/kvm_ppc.h b/target/ppc/kvm_ppc.h
index ee9325bf9a..b05aedb9f8 100644
--- a/target/ppc/kvm_ppc.h
+++ b/target/ppc/kvm_ppc.h
@@ -14,7 +14,7 @@
 #ifdef CONFIG_KVM
 
 uint32_t kvmppc_get_tbfreq(void);
-uint64_t kvmppc_get_clockfreq(void);
+uint64_t kvmppc_get_clockfreq(Error **errp);
 bool kvmppc_get_host_model(char **buf);
 bool kvmppc_get_host_serial(char **buf);
 int kvmppc_get_hasidle(CPUPPCState *env);
-- 
2.36.1