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authorMike Frysinger <vapier@gentoo.org>2009-09-14 13:43:49 -0400
committerMarcel Holtmann <marcel@holtmann.org>2010-01-30 08:57:26 -0500
commit7427847d2d044d85f478757ea03165ae3cfe87c4 (patch)
tree17c2da9c5dc61ccf4151065483a0751eb26f8dd8 /drivers/bluetooth
parente420aba331f44de0eed6871441293a6124d566d1 (diff)
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>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/bluecard_cs.c4
-rw-r--r--drivers/bluetooth/bt3c_cs.c4
-rw-r--r--drivers/bluetooth/btuart_cs.c4
-rw-r--r--drivers/bluetooth/dtl1_cs.c4
4 files changed, 12 insertions, 4 deletions
diff --git a/drivers/bluetooth/bluecard_cs.c b/drivers/bluetooth/bluecard_cs.c
index 2acdc605cb4b..c2cf81144715 100644
--- a/drivers/bluetooth/bluecard_cs.c
+++ b/drivers/bluetooth/bluecard_cs.c
@@ -503,7 +503,9 @@ static irqreturn_t bluecard_interrupt(int irq, void *dev_inst)
503 unsigned int iobase; 503 unsigned int iobase;
504 unsigned char reg; 504 unsigned char reg;
505 505
506 BUG_ON(!info->hdev); 506 if (!info || !info->hdev)
507 /* our irq handler is shared */
508 return IRQ_NONE;
507 509
508 if (!test_bit(CARD_READY, &(info->hw_state))) 510 if (!test_bit(CARD_READY, &(info->hw_state)))
509 return IRQ_HANDLED; 511 return IRQ_HANDLED;
diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c
index d814a2755ccb..9f5926aaf57f 100644
--- a/drivers/bluetooth/bt3c_cs.c
+++ b/drivers/bluetooth/bt3c_cs.c
@@ -345,7 +345,9 @@ static irqreturn_t bt3c_interrupt(int irq, void *dev_inst)
345 int iir; 345 int iir;
346 irqreturn_t r = IRQ_NONE; 346 irqreturn_t r = IRQ_NONE;
347 347
348 BUG_ON(!info->hdev); 348 if (!info || !info->hdev)
349 /* our irq handler is shared */
350 return IRQ_NONE;
349 351
350 iobase = info->p_dev->io.BasePort1; 352 iobase = info->p_dev->io.BasePort1;
351 353
diff --git a/drivers/bluetooth/btuart_cs.c b/drivers/bluetooth/btuart_cs.c
index d339464dc15e..91c523099804 100644
--- a/drivers/bluetooth/btuart_cs.c
+++ b/drivers/bluetooth/btuart_cs.c
@@ -295,7 +295,9 @@ static irqreturn_t btuart_interrupt(int irq, void *dev_inst)
295 int iir, lsr; 295 int iir, lsr;
296 irqreturn_t r = IRQ_NONE; 296 irqreturn_t r = IRQ_NONE;
297 297
298 BUG_ON(!info->hdev); 298 if (!info || !info->hdev)
299 /* our irq handler is shared */
300 return IRQ_NONE;
299 301
300 iobase = info->p_dev->io.BasePort1; 302 iobase = info->p_dev->io.BasePort1;
301 303
diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c
index 4f02a6f3c980..697591941e17 100644
--- a/drivers/bluetooth/dtl1_cs.c
+++ b/drivers/bluetooth/dtl1_cs.c
@@ -299,7 +299,9 @@ static irqreturn_t dtl1_interrupt(int irq, void *dev_inst)
299 int iir, lsr; 299 int iir, lsr;
300 irqreturn_t r = IRQ_NONE; 300 irqreturn_t r = IRQ_NONE;
301 301
302 BUG_ON(!info->hdev); 302 if (!info || !info->hdev)
303 /* our irq handler is shared */
304 return IRQ_NONE;
303 305
304 iobase = info->p_dev->io.BasePort1; 306 iobase = info->p_dev->io.BasePort1;
305 307