mm/cma: fix useless return in void function

There is a unnecessary return statement at the end of void function
cma_activate_area.  This can be dropped.

While at it, also fix another warning related to unsigned.
These are reported by checkpatch as well.

WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
+unsigned cma_area_count;

WARNING: void function return statements are not generally useful
+       return;
+}

Link: https://lkml.kernel.org/r/20240927181637.19941-1-quic_pintu@quicinc.com
Signed-off-by: Pintu Kumar <quic_pintu@quicinc.com>
Cc: Pintu Agarwal <pintu.ping@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/cma.c b/mm/cma.c
index 2d9fae9..c5869d0 100644 (file)
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -32,7 +32,7 @@
 #include "cma.h"
 
 struct cma cma_areas[MAX_CMA_AREAS];
-unsigned cma_area_count;
+unsigned int cma_area_count;
 static DEFINE_MUTEX(cma_mutex);
 
 phys_addr_t cma_get_base(const struct cma *cma)
@@ -135,7 +135,6 @@ out_error:
        totalcma_pages -= cma->count;
        cma->count = 0;
        pr_err("CMA area %s could not be activated\n", cma->name);
-       return;
 }
 
 static int __init cma_init_reserved_areas(void)