mm: cma: remove unnecessary initialization of ret

The ret variable can be defined without assigning a value, as it is
assigned before use.

Link: https://lkml.kernel.org/r/20231205021751.100459-1-zeming@nfschina.com
Signed-off-by: Li zeming <zeming@nfschina.com>
Reviewed-by: Andrew Morton <akpm@linux-foudation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/cma.c b/mm/cma.c
index 2b2494fd6b59a6832b16c83b06ce2d6d454a66de..7c09c47e530bf624fd05cfec3456fbf2346446e3 100644 (file)
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -244,7 +244,7 @@ int __init cma_declare_contiguous_nid(phys_addr_t base,
 {
        phys_addr_t memblock_end = memblock_end_of_DRAM();
        phys_addr_t highmem_start;
-       int ret = 0;
+       int ret;
 
        /*
         * We can't use __pa(high_memory) directly, since high_memory