Return error in case of pending IRQ but none functions bits
in CCCR_INTx is set.
Signed-off-by: Per Forlin <per.forlin@xxxxxxxxxx>
---
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 2f81ddc..8184b6e 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
--
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