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Diffstat (limited to 'arch/powerpc/kernel/rtas.c')
-rw-r--r--arch/powerpc/kernel/rtas.c30
1 files changed, 15 insertions, 15 deletions
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 21c45a2d0706..7a488c108410 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -401,7 +401,7 @@ static char *__fetch_rtas_last_error(char *altbuf)
buf = altbuf;
} else {
buf = rtas_err_buf;
- if (mem_init_done)
+ if (slab_is_available())
buf = kmalloc(RTAS_ERROR_LOG_MAX, GFP_ATOMIC);
}
if (buf)
@@ -461,7 +461,7 @@ int rtas_call(int token, int nargs, int nret, int *outputs, ...)
if (buff_copy) {
log_error(buff_copy, ERR_TYPE_RTAS_LOG, 0);
- if (mem_init_done)
+ if (slab_is_available())
kfree(buff_copy);
}
return ret;
@@ -897,7 +897,7 @@ int rtas_offline_cpus_mask(cpumask_var_t cpus)
}
EXPORT_SYMBOL(rtas_offline_cpus_mask);
-int rtas_ibm_suspend_me(u64 handle, int *vasi_return)
+int rtas_ibm_suspend_me(u64 handle)
{
long state;
long rc;
@@ -919,13 +919,11 @@ int rtas_ibm_suspend_me(u64 handle, int *vasi_return)
printk(KERN_ERR "rtas_ibm_suspend_me: vasi_state returned %ld\n",rc);
return rc;
} else if (state == H_VASI_ENABLED) {
- *vasi_return = RTAS_NOT_SUSPENDABLE;
- return 0;
+ return -EAGAIN;
} else if (state != H_VASI_SUSPENDING) {
printk(KERN_ERR "rtas_ibm_suspend_me: vasi_state returned state %ld\n",
state);
- *vasi_return = -1;
- return 0;
+ return -EIO;
}
if (!alloc_cpumask_var(&offline_mask, GFP_TEMPORARY))
@@ -972,7 +970,7 @@ out:
return atomic_read(&data.error);
}
#else /* CONFIG_PPC_PSERIES */
-int rtas_ibm_suspend_me(u64 handle, int *vasi_return)
+int rtas_ibm_suspend_me(u64 handle)
{
return -ENOSYS;
}
@@ -1022,7 +1020,6 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
unsigned long flags;
char *buff_copy, *errbuf = NULL;
int nargs, nret, token;
- int rc;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
@@ -1054,15 +1051,18 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
if (token == ibm_suspend_me_token) {
/*
- * rtas_ibm_suspend_me assumes args are in cpu endian, or at least the
- * hcall within it requires it.
+ * rtas_ibm_suspend_me assumes the streamid handle is in cpu
+ * endian, or at least the hcall within it requires it.
*/
- int vasi_rc = 0;
+ int rc = 0;
u64 handle = ((u64)be32_to_cpu(args.args[0]) << 32)
| be32_to_cpu(args.args[1]);
- rc = rtas_ibm_suspend_me(handle, &vasi_rc);
- args.rets[0] = cpu_to_be32(vasi_rc);
- if (rc)
+ rc = rtas_ibm_suspend_me(handle);
+ if (rc == -EAGAIN)
+ args.rets[0] = cpu_to_be32(RTAS_NOT_SUSPENDABLE);
+ else if (rc == -EIO)
+ args.rets[0] = cpu_to_be32(-1);
+ else if (rc)
return rc;
goto copy_return;
}