pnpbios: propagate kthread_run() error

- Error code from kthread_run() is now returned in pnpbios_thread_init()

- Remove variable which always was 0.

Signed-off-by: Erik Ekman <erik@kryo.se>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
index e706d22b6dd1..cfe86853feb2 100644
--- a/drivers/pnp/pnpbios/core.c
+++ b/drivers/pnp/pnpbios/core.c
@@ -94,7 +94,6 @@ struct pnp_dev_node_info node_info;
 
 #ifdef CONFIG_HOTPLUG
 
-static int unloading = 0;
 static struct completion unload_sem;
 
 /*
@@ -158,7 +157,7 @@ static int pnp_dock_thread(void *unused)
         int docked = -1, d = 0;
 
         set_freezable();
-        while (!unloading) {
+        while (1) {
                 int status;
 
                 /*
@@ -586,8 +585,8 @@ static int __init pnpbios_thread_init(void)
                 struct task_struct *task;
                 init_completion(&unload_sem);
                 task = kthread_run(pnp_dock_thread, NULL, "kpnpbiosd");
-                if (!IS_ERR(task))
-                        unloading = 0;
+                if (IS_ERR(task))
+                        return PTR_ERR(task);
         }
 #endif
         return 0;