cs5535-clockevt: Free timer in IRQ setup error path

Due to a hardware limitation cs5535_mfgpt_free_timer() cannot actually
release the timer hardware, but it will at least free the now unreferenced
struct associated with it so calling it is the cleaner thing to do.

Signed-off-by: Jens Rottmann <JRottmann@LiPPERTEmbedded.de>
Acked-by: Andres Salomon <dilinger@collabora.co.uk>
Cc: Jordan Crouse <jordan@cosmicpenguin.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: john stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/clocksource/cs5535-clockevt.c b/drivers/clocksource/cs5535-clockevt.c
index b314a999aabe..d7be69f13154 100644
--- a/drivers/clocksource/cs5535-clockevt.c
+++ b/drivers/clocksource/cs5535-clockevt.c
@@ -154,14 +154,14 @@ static int __init cs5535_mfgpt_init(void)
         if (cs5535_mfgpt_setup_irq(timer, MFGPT_CMP2, &timer_irq)) {
                 printk(KERN_ERR DRV_NAME ": Could not set up IRQ %d\n",
                                 timer_irq);
-                return -EIO;
+                goto err_timer;
         }
 
         /* And register it with the kernel */
         ret = setup_irq(timer_irq, &mfgptirq);
         if (ret) {
                 printk(KERN_ERR DRV_NAME ": Unable to set up the interrupt.\n");
-                goto err;
+                goto err_irq;
         }
 
         /* Set the clock scale and enable the event mode for CMP2 */
@@ -184,8 +184,10 @@ static int __init cs5535_mfgpt_init(void)
 
         return 0;
 
-err:
+err_irq:
         cs5535_mfgpt_release_irq(cs5535_event_clock, MFGPT_CMP2, &timer_irq);
+err_timer:
+        cs5535_mfgpt_free_timer(cs5535_event_clock);
         printk(KERN_ERR DRV_NAME ": Unable to set up the MFGPT clock source\n");
         return -EIO;
 }