[LU-11029] passing a valid pointer to PTR_ERR

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Labels: easy
• Severity: 3
• Assignee: WC Triage
• Reporter: Oleg Drokin

Description

Passing of valid pointers to PTR_ERR is unlikely to lead to desired effects, so we really need to do something about it.

one example:

        wobdo = object_update_param_get(update, 0, &size);
        if (IS_ERR(wobdo) || size != sizeof(*wobdo)) {
                CERROR("%s: obdo is NULL, invalid RPC: rc = %ld\n",
                       tgt_name(tsi->tsi_tgt), PTR_ERR(wobdo));
                RETURN(PTR_ERR(wobdo));
        }

List of triggers:

lustre/target/out_handler.c:120 out_create() warn: passing a valid pointer to 'PTR_ERR'
lustre/target/out_handler.c:122 out_create() warn: passing a valid pointer to 'PTR_ERR'
lustre/target/out_handler.c:134 out_create() warn: passing a valid pointer to 'PTR_ERR'
lustre/target/out_handler.c:136 out_create() warn: passing a valid pointer to 'PTR_ERR'
lustre/target/out_handler.c:173 out_attr_set() warn: passing a valid pointer to 'PTR_ERR'
lustre/target/out_handler.c:175 out_attr_set() warn: passing a valid pointer to 'PTR_ERR'
lustre/target/out_handler.c:390 out_xattr_set() warn: passing a valid pointer to 'PTR_ERR'
lustre/target/out_handler.c:392 out_xattr_set() warn: passing a valid pointer to 'PTR_ERR'
lustre/target/out_handler.c:487 out_index_insert() warn: passing a valid pointer to 'PTR_ERR'
lustre/target/out_handler.c:489 out_index_insert() warn: passing a valid pointer to 'PTR_ERR'
lustre/target/out_handler.c:503 out_index_insert() warn: passing a valid pointer to 'PTR_ERR'
lustre/target/out_handler.c:505 out_index_insert() warn: passing a valid pointer to 'PTR_ERR'
lustre/target/out_handler.c:590 out_write() warn: passing a valid pointer to 'PTR_ERR'
lustre/target/out_handler.c:592 out_write() warn: passing a valid pointer to 'PTR_ERR'
lustre/target/out_handler.c:599 out_write() warn: passing a valid pointer to 'PTR_ERR'
lustre/target/out_handler.c:601 out_write() warn: passing a valid pointer to 'PTR_ERR'