zero_to_err_ptr: fix fall out from unsigned pointer changes and improve
commit8a981750165408ebeed5f1f2fcadf29d48d51be8
authorDan Carpenter <dan.carpenter@oracle.com>
Tue, 26 Feb 2019 09:30:01 +0000 (26 12:30 +0300)
committerDan Carpenter <dan.carpenter@oracle.com>
Tue, 26 Feb 2019 09:35:37 +0000 (26 12:35 +0300)
treec6d6fc2b64e24fada69891a97881df6b62f33974
parent22eb7d2e6e1029d2d9570b55b2f095076e04a500
zero_to_err_ptr:  fix fall out from unsigned pointer changes and improve

The recent unsigned pointer changes caused some false positives in this
check.  Also I improved it to be more accurate and more strict about
passing zero to PTR_ERR().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
check_zero_to_err_ptr.c