From mboxrd@z Thu Jan 1 00:00:00 1970 From: per.forlin@stericsson.com (Per Forlin) Date: Wed, 1 Jun 2011 10:48:33 +0200 Subject: [PATCH v2 2/2] sdio: report error if pending IRQ but none CCCR_INTx bits In-Reply-To: <1306918113-23872-2-git-send-email-per.forlin@stericsson.com> References: <1306918113-23872-1-git-send-email-per.forlin@stericsson.com> <1306918113-23872-2-git-send-email-per.forlin@stericsson.com> Message-ID: <1306918113-23872-3-git-send-email-per.forlin@stericsson.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Per Forlin Return error in case of pending IRQ but none functions bits in CCCR_INTx are set. Signed-off-by: Per Forlin --- drivers/mmc/core/sdio_irq.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/drivers/mmc/core/sdio_irq.c b/drivers/mmc/core/sdio_irq.c index df1e946..4288d92 100644 --- a/drivers/mmc/core/sdio_irq.c +++ b/drivers/mmc/core/sdio_irq.c @@ -50,6 +50,11 @@ static int process_sdio_pending_irqs(struct mmc_card *card) return ret; } + if (!pending) { + printk(KERN_WARNING "%s: pending IRQ but none function bits\n", + mmc_card_id(card)); + ret = -EINVAL; + } count = 0; for (i = 1; i <= 7; i++) { if (pending & (1 << i)) { -- 1.7.4.1