[PATCH 3.16.y-ckt 125/130] s390/sclp: fix compile error

[Luis Henriques]

3.16.7-ckt17 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sebastian Ott <sebott@xxxxxxxxxxxxxxxxxx>

commit a313bdc5310dd807655d3ca3eb2219cd65dfe45a upstream.

Fix this error when compiling with CONFIG_SMP=n and
CONFIG_DYNAMIC_DEBUG=y:

drivers/s390/char/sclp_early.c: In function 'sclp_read_info_early':
drivers/s390/char/sclp_early.c:87:19: error: 'EBUSY' undeclared (first use in this function)
   } while (rc == -EBUSY);
                   ^

Signed-off-by: Sebastian Ott <sebott@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Stephen Powell <zlinuxman@xxxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
 drivers/s390/char/sclp_early.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index 1918d9dff45d..45c3d7041c81 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -7,6 +7,7 @@
 #define KMSG_COMPONENT "sclp_early"
 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
 
+#include <linux/errno.h>
 #include <asm/ctl_reg.h>
 #include <asm/sclp.h>
 #include <asm/ipl.h>
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