[ARM] 5108/2: PXA SSP: Don't unconditionally free interrupt

Callers may stop the SSP core requesting the interrupt so it can't be
freed unconditionally.  Also use NO_IRQ like we should.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 3 insertions, 2 deletions

diff --git a/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c
index 00af7f2fed66..363668cc3a9c 100644
--- a/arch/arm/mach-pxa/ssp.c
+++ b/arch/arm/mach-pxa/ssp.c
@@ -285,7 +285,7 @@ int ssp_init(struct ssp_dev *dev, u32 port, u32 init_flags)
                         goto out_region;
                 dev->irq = ssp->irq;
         } else
-                dev->irq = 0;
+                dev->irq = NO_IRQ;
 
         /* turn on SSP port clock */
         clk_enable(ssp->clk);
@@ -306,7 +306,8 @@ void ssp_exit(struct ssp_dev *dev)
         struct ssp_device *ssp = dev->ssp;
 
         ssp_disable(dev);
-        free_irq(dev->irq, dev);
+        if (dev->irq != NO_IRQ)
+                free_irq(dev->irq, dev);
         clk_disable(ssp->clk);
         ssp_free(ssp);
 }