diff options
| author | Hsuan Ting Chen <roccochen@chromium.org> | 2020-09-17 15:51:34 +0800 |
|---|---|---|
| committer | Hung-Te Lin <hungte@chromium.org> | 2020-09-19 01:36:57 +0000 |
| commit | 8742e2a9238da49aeb4dd1afa9603fdc22697422 (patch) | |
| tree | 646862654feec4aeeed7c366179661ee39d51806 | |
| parent | cbd0bd8155107d109b6c4dd04b9233a04dadc892 (diff) | |
libpayload: free: Separate NULL check out for clarity
Separate the validity check of calling free(NULL) for clarity.
BUG=b:168441735
TEST=emerge-puff libpayload
Change-Id: I0dc355553410bbe59e658945fb40c05f5f709380
Signed-off-by: Hsuan Ting Chen <roccochen@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45465
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
| -rw-r--r-- | payloads/libpayload/libc/malloc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/payloads/libpayload/libc/malloc.c b/payloads/libpayload/libc/malloc.c index 48bf32ee3b..20f9ef38e1 100644 --- a/payloads/libpayload/libc/malloc.c +++ b/payloads/libpayload/libc/malloc.c @@ -246,6 +246,10 @@ void free(void *ptr) hdrtype_t hdr; struct memory_type *type = heap; + /* No action occurs on NULL. */ + if (ptr == NULL) + return; + /* Sanity check. */ if (ptr < type->start || ptr >= type->end) { type = dma; |