From 754fa7bc9852f17d3c79b93747b643e1665ce0de Mon Sep 17 00:00:00 2001 From: Danke Xie Date: Mon, 23 Dec 2013 19:11:46 +0200 Subject: [PATCH] mfd: twl6030: Fix endianness problem in IRQ handler The current TWL 6030 IRQ handler assumes little endianness. This change makes it endian-neutral. Signed-off-by: Danke Xie Signed-off-by: Taras Kondratiuk Signed-off-by: Lee Jones --- drivers/mfd/twl6030-irq.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c index 517eda832f79..18a607e2ca06 100644 --- a/drivers/mfd/twl6030-irq.c +++ b/drivers/mfd/twl6030-irq.c @@ -176,8 +176,9 @@ static irqreturn_t twl6030_irq_thread(int irq, void *data) int i, ret; union { u8 bytes[4]; - u32 int_sts; + __le32 int_sts; } sts; + u32 int_sts; /* sts.int_sts converted to CPU endianness */ struct twl6030_irq *pdata = data; /* read INT_STS_A, B and C in one shot using a burst read */ @@ -196,8 +197,9 @@ static irqreturn_t twl6030_irq_thread(int irq, void *data) if (sts.bytes[2] & 0x10) sts.bytes[2] |= 0x08; - for (i = 0; sts.int_sts; sts.int_sts >>= 1, i++) - if (sts.int_sts & 0x1) { + int_sts = le32_to_cpu(sts.int_sts); + for (i = 0; int_sts; int_sts >>= 1, i++) + if (int_sts & 0x1) { int module_irq = irq_find_mapping(pdata->irq_domain, pdata->irq_mapping_tbl[i]);