1 files changed, 2 insertions, 1 deletions

diff --git a/arch/um/drivers/slip_proto.h b/arch/um/drivers/slip_proto.h
index 7206361ace45..4c4d94a33100 100644
--- a/arch/um/drivers/slip_proto.h
+++ b/arch/um/drivers/slip_proto.h
@@ -12,7 +12,8 @@
 #define SLIP_ESC_END         0334       /* ESC ESC_END means END 'data' */
 #define SLIP_ESC_ESC         0335       /* ESC ESC_ESC means ESC 'data' */
 
-static inline int slip_unesc(unsigned char c,char *buf,int *pos, int *esc)
+static inline int slip_unesc(unsigned char c, unsigned char *buf, int *pos,
+                             int *esc)
 {
         int ret;