redundant check against null

[QiAnXinCodeSafe]

Hi all,
There is a redundant check against null issue found by Qihoo360 CodeSafe Team.
Details as bellow:

myhtml/source/mycore/mystring.c

Line 78 in 097039f

if(str_raw == NULL)

if str_raw is a null pointer, function will return.

and

myhtml/source/mycore/mystring.c

Line 81 in 097039f

if(str_raw->data) {

the pointer str_raw is dereferenced.

myhtml/source/mycore/mystring.c

Line 86 in 097039f

if(destroy_obj && str_raw) {

there is no need to check pointer str_raw here.

Cheers
Qihoo360 CodeSafe Team

[lexborisov]

@360CodeSafe

Thank you!
It will be fixed soon.