Please check for false positives in the output before submitting a patch. When using "patch" mode, carefully review the patch before submitting it. /home/cocci/testing/drivers/net/ethernet/broadcom/bnxt/bnxt.c:5690:6-25: WARNING: atomic_dec_and_test variation before object free at line 5697. warning: line 140: should noop_llseek be a metavariable? warning: line 222: should nonseekable_open be a metavariable? warning: line 289: should nonseekable_open be a metavariable? warning: line 337: should nonseekable_open be a metavariable? /home/cocci/testing/net/ethtool/ioctl.c:1612:1-7: preceding lock on line 1467 /home/cocci/testing/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c:4474:1-7: preceding lock on line 4376 /home/cocci/testing/net/unix/af_unix.c:2525:1-7: preceding lock on line 2433 /home/cocci/testing/net/unix/af_unix.c:3352:3-9: preceding lock on line 3348 /home/cocci/testing/drivers/net/tun.c:2040:1-7: preceding lock on line 1844 /home/cocci/testing/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c:2769:1-7: WARNING: do_div() does a 64-by-32 division, please consider using div64_ul instead. /home/cocci/testing/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h:9936:4-12: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) /home/cocci/testing/drivers/net/can/spi/hi311x.c:760:7-27: WARNING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ) /home/cocci/testing/net/ipv4/igmp.c:598:12-21: ERROR: pmc is NULL but dereferenced. /home/cocci/testing/net/ipv6/mcast.c:2069:12-21: ERROR: pmc is NULL but dereferenced.