[PATCH] usb/gadget: fix compile error on r8a66597-udc.c

[Grant Likely]

C file uses IS_ERR and PTR_ERR, but doesn't include <linux/err.h>

Signed-off-by: Grant Likely <grant.likely@xxxxxxxxxxxx>
---

 drivers/usb/gadget/r8a66597-udc.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c
index 8b45145..5e13d23 100644
--- a/drivers/usb/gadget/r8a66597-udc.c
+++ b/drivers/usb/gadget/r8a66597-udc.c
@@ -23,6 +23,7 @@
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
+#include <linux/err.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>

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