ARM: OMAP: smartreflex: fix IRQ handling bug

commit 5a4f1844c2ba21f804d7729306d9b16eaeb724a8 upstream.

Fix a bug which has been on this driver since
it was added by the original commit 984aa6db
which would never clear IRQSTATUS bits.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
index fb7dc52394a8fd8a872fb0e1f22d0cc867a3df9b..f5a6bc1250ce7c85ff8c97782fb47ded10f93392 100644 (file)
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -137,7 +137,7 @@ static irqreturn_t sr_interrupt(int irq, void *data)
                sr_write_reg(sr_info, ERRCONFIG_V1, status);
        } else if (sr_info->ip_type == SR_TYPE_V2) {
                /* Read the status bits */
-               sr_read_reg(sr_info, IRQSTATUS);
+               status = sr_read_reg(sr_info, IRQSTATUS);
 
                /* Clear them by writing back */
                sr_write_reg(sr_info, IRQSTATUS, status);