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authorJiri Slaby <jslaby@suse.cz>2019-07-21 10:23:21 +0200
committerJiri Slaby <jslaby@suse.cz>2019-07-21 10:23:25 +0200
commit8bac2bf68cbbf90740935560001b31631f8fa27b (patch)
treecb2c9744d2da2aa9bc38cecdb71127e7e93f4aed
parent4e2a25436124afc8ae5ad5865cbcd5f6ac07b6fe (diff)
genirq: Fix misleading synchronize_irq() documentation
-rw-r--r--kernel/irq/manage.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 54a41da65eb3..df8498dcb392 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -96,7 +96,8 @@ EXPORT_SYMBOL(synchronize_hardirq);
* to complete before returning. If you use this function while
* holding a resource the IRQ handler may need you will deadlock.
*
- * This function may be called - with care - from IRQ context.
+ * Can only be called from preemptible code as it might sleep when
+ * an interrupt thread is associated to @irq.
*/
void synchronize_irq(unsigned int irq)
{