radeon: Fix typo in stderr message

Signed-off-by: Andreas Boll <andreas.boll.dev@gmail.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
diff --git a/radeon/radeon_cs_gem.c b/radeon/radeon_cs_gem.c
index cdec64e..23f33af 100644
--- a/radeon/radeon_cs_gem.c
+++ b/radeon/radeon_cs_gem.c
@@ -323,7 +323,7 @@
         return -EPIPE;
     }
     if (cs->section_ndw != cs->section_cdw) {
-        fprintf(stderr, "CS section size missmatch start at (%s,%s,%d) %d vs %d\n",
+        fprintf(stderr, "CS section size mismatch start at (%s,%s,%d) %d vs %d\n",
                 cs->section_file, cs->section_func, cs->section_line, cs->section_ndw, cs->section_cdw);
         fprintf(stderr, "CS section end at (%s,%s,%d)\n",
                 file, func, line);