[PATCH] arm: plat-omap: counter_32k: Fix build error due to IS_ERR

[Sourav Poddar]

Fix the following build error by including linux/err.h
arch/arm/plat-omap/counter_32k.c: In function 'omap_init_clocksource_32k':
arch/arm/plat-omap/counter_32k.c:167: error: implicit declaration of
                                      function 'IS_ERR'

The above error is due to the following commit:
subject: arm: plat-omap: counter_32k: use IS_ERR() instead of NULL check
commit: 235fbace0334c846c21e902f330020122fc85955

Created on linux-omap-2.6 branch: omap-fixes

Signed-off-by: Sourav Poddar <sourav.poddar at ti.com>
Reviewed-by: Charulatha V <charu at ti.com>
Acked-by: Felipe Balbi <balbi at ti.com>
---
 arch/arm/plat-omap/counter_32k.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/arm/plat-omap/counter_32k.c b/arch/arm/plat-omap/counter_32k.c
index c1e0d00..8722a13 100644
--- a/arch/arm/plat-omap/counter_32k.c
+++ b/arch/arm/plat-omap/counter_32k.c
@@ -16,6 +16,7 @@
 #include <linux/init.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/err.h>
 
 #include <plat/common.h>
 #include <plat/board.h>
-- 
1.7.0.4