Commit 9c836d0c authored Mar 27, 2015 by Amit Tomar Committed by Wolfram Sang Mar 27, 2015

i2c: mpc: Fix ISR return value



ISR should not return IRQ_HANDLED for not handling anything.
This patch fixes the return value of ISR for the same case.

Signed-off-by: Amit Singh Tomar <amit.tomar@freescale.com>
Acked-by: Danielle Costantino <danielle.costantino@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

parent 98e982b3

drivers/i2c/busses/i2c-mpc.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -96,9 +96,10 @@ static irqreturn_t mpc_i2c_isr(int irq, void *dev_id)
		i2c->interrupt = readb(i2c->base + MPC_I2C_SR);
		writeb(0, i2c->base + MPC_I2C_SR);
		wake_up(&i2c->queue);
		}
		return IRQ_HANDLED;
		}
		return IRQ_NONE;
		}

		/* Sometimes 9th clock pulse isn't generated, and slave doesn't release
		* the bus, because it wants to send ACK.