Bluetooth: Redo checks in IRQ handler for shared IRQ support
Commit ac019360fe3 changed the irq handler logic to BUG_ON rather than
returning IRQ_NONE when the incoming argument is invalid. While this
works in most cases, it doesn't work when the IRQ is shared with other
devices (or when DEBUG_SHIRQ is enabled).
So revert the previous change and replace the warning message with a
comment explaining that we want this behavior.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c
index d814a27..9f5926a 100644
--- a/drivers/bluetooth/bt3c_cs.c
+++ b/drivers/bluetooth/bt3c_cs.c
@@ -345,7 +345,9 @@
int iir;
irqreturn_t r = IRQ_NONE;
- BUG_ON(!info->hdev);
+ if (!info || !info->hdev)
+ /* our irq handler is shared */
+ return IRQ_NONE;
iobase = info->p_dev->io.BasePort1;
