From ac019360fe311dd6aa11b358a02eb3a61675882e Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Sat, 20 Oct 2007 13:45:57 +0200 Subject: [PATCH] [Bluetooth] Eliminate checks for impossible conditions in IRQ handler Our info structure and info->hdev is always passed to the IRQ handler, so we don't have to worry about these checks in every interrupt. Leave a BUG_ON() just to help unwary programmers, but these could probably be removed as well. Signed-off-by: Jeff Garzik Signed-off-by: Marcel Holtmann --- drivers/bluetooth/bluecard_cs.c | 5 +---- drivers/bluetooth/bt3c_cs.c | 5 +---- drivers/bluetooth/btuart_cs.c | 5 +---- drivers/bluetooth/dtl1_cs.c | 5 +---- 4 files changed, 4 insertions(+), 16 deletions(-) diff --git a/drivers/bluetooth/bluecard_cs.c b/drivers/bluetooth/bluecard_cs.c index 851de4d5b7..bcf57927b7 100644 --- a/drivers/bluetooth/bluecard_cs.c +++ b/drivers/bluetooth/bluecard_cs.c @@ -503,10 +503,7 @@ static irqreturn_t bluecard_interrupt(int irq, void *dev_inst) unsigned int iobase; unsigned char reg; - if (!info || !info->hdev) { - BT_ERR("Call of irq %d for unknown device", irq); - return IRQ_NONE; - } + BUG_ON(!info->hdev); if (!test_bit(CARD_READY, &(info->hw_state))) return IRQ_HANDLED; diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c index 3951607463..a18f9b8c9e 100644 --- a/drivers/bluetooth/bt3c_cs.c +++ b/drivers/bluetooth/bt3c_cs.c @@ -344,10 +344,7 @@ static irqreturn_t bt3c_interrupt(int irq, void *dev_inst) unsigned int iobase; int iir; - if (!info || !info->hdev) { - BT_ERR("Call of irq %d for unknown device", irq); - return IRQ_NONE; - } + BUG_ON(!info->hdev); iobase = info->p_dev->io.BasePort1; diff --git a/drivers/bluetooth/btuart_cs.c b/drivers/bluetooth/btuart_cs.c index d7d2ea0d86..08f48d577a 100644 --- a/drivers/bluetooth/btuart_cs.c +++ b/drivers/bluetooth/btuart_cs.c @@ -294,10 +294,7 @@ static irqreturn_t btuart_interrupt(int irq, void *dev_inst) int boguscount = 0; int iir, lsr; - if (!info || !info->hdev) { - BT_ERR("Call of irq %d for unknown device", irq); - return IRQ_NONE; - } + BUG_ON(!info->hdev); iobase = info->p_dev->io.BasePort1; diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c index 7f9c54b996..dae45cdf02 100644 --- a/drivers/bluetooth/dtl1_cs.c +++ b/drivers/bluetooth/dtl1_cs.c @@ -298,10 +298,7 @@ static irqreturn_t dtl1_interrupt(int irq, void *dev_inst) int boguscount = 0; int iir, lsr; - if (!info || !info->hdev) { - BT_ERR("Call of irq %d for unknown device", irq); - return IRQ_NONE; - } + BUG_ON(!info->hdev); iobase = info->p_dev->io.BasePort1; -- 2.39.5