Hello Wei Yongjun,
The patch 22ca904ad70a: "genetlink: fix error return code in
genl_register_family()" from Nov 1, 2016, leads to the following
static checker warning:
net/netlink/genetlink.c:365 genl_register_family()
warn: unsigned 'family->id' is never less than zero.
net/netlink/genetlink.c
362
363 family->id = idr_alloc(&genl_fam_idr, family,
364 start, end + 1, GFP_KERNEL);
365 if (family->id < 0) {
^^^^^^^^^^^^^^
Doesn't work for unsigned int.
366 err = family->id;
367 goto errout_free;
368 }
369
regards,
dan carpenter
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