From: Zhang Yanfei <zhangyanfei@xxxxxxxxxxxxxx>
If size is zero, it is unnecessary to do the malloc operation.
So checking size first is better than doing malloc first.
Signed-off-by: Zhang Yanfei <zhangyanfei at cn.fujitsu.com>
---
kexec/kexec.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/kexec/kexec.c b/kexec/kexec.c
index 3ef6f0d..494c5b3 100644
--- a/kexec/kexec.c
+++ b/kexec/kexec.c
@@ -76,9 +76,9 @@ static char *xstrdup(const char *str)
void *xmalloc(size_t size)
{
void *buf;
- buf = malloc(size);
if (!size)
return NULL;
+ buf = malloc(size);
if (!buf) {
die("Cannot malloc %ld bytes: %s\n",
size + 0UL, strerror(errno));
--
1.7.1
