diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-omap.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-omap.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index bb51488..4cc2f05 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -881,12 +881,15 @@ omap_i2c_isr(int irq, void *dev_id) u16 mask; u16 stat; - stat = omap_i2c_read_reg(dev, OMAP_I2C_STAT_REG); + spin_lock(&dev->lock); mask = omap_i2c_read_reg(dev, OMAP_I2C_IE_REG); + stat = omap_i2c_read_reg(dev, OMAP_I2C_STAT_REG); if (stat & mask) ret = IRQ_WAKE_THREAD; + spin_unlock(&dev->lock); + return ret; } |