Hello Luis R. Rodriguez,
The patch d4988623cc60: "IB/qib: use arch_phys_wc_add()" from Apr 22,
2015, leads to the following static checker warning:
drivers/infiniband/hw/qib/qib_wc_x86_64.c:120 qib_enable_wc()
warn: unsigned 'dd->wc_cookie' is never less than zero.
drivers/infiniband/hw/qib/qib_wc_x86_64.c
117
118 if (!ret) {
119 dd->wc_cookie = arch_phys_wc_add(pioaddr, piolen);
120 if (dd->wc_cookie < 0)
^^^^^^^^^^^^^^^^^
arch_phys_wc_add() does return negatives on error but this is unsigned.
121 ret = -EINVAL;
122 }
123
124 return ret;
125 }
regards,
dan carpenter
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