[PATCH] ACPI suspend/resume locking fix

Patch from Andreas Mohr <andi@rhlx01.fht-esslingen.de>

Need to retake the spinlock in __pdflush() before continuing.

diff --git a/mm/pdflush.c b/mm/pdflush.c
index deb33a7755f0c8146fe1fecd08b63b9ee65c9e27..cebfb8c42f25d2145512a8de90d8516bddfe1e40 100644 (file)
--- a/mm/pdflush.c
+++ b/mm/pdflush.c
@@ -106,6 +106,7 @@ static int __pdflush(struct pdflush_work *my_work)
                schedule();
                if (current->flags & PF_FREEZE) {
                        refrigerator(PF_IOTHREAD);
+                       spin_lock_irq(&pdflush_lock);
                        continue;
                }