| Message ID | 20180711201617.898598-1-arnd@arndb.de (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c index 6aff9303251a..be640ad2b7b6 100644 --- a/drivers/scsi/libfc/fc_rport.c +++ b/drivers/scsi/libfc/fc_rport.c @@ -1835,8 +1835,6 @@ static void fc_rport_recv_plogi_req(struct fc_lport *lport, struct fc_seq_els_data rjt_data; u32 sid; - lockdep_assert_held(&rdata->rp_mutex); - sid = fc_frame_sid(fp); FC_RPORT_ID_DBG(lport, sid, "Received PLOGI request\n");
gcc points out one case in which the added lockdep_assert_held() is wrong: In file included from include/linux/spinlock_types.h:18, from include/linux/spinlock.h:82, from drivers/scsi/libfc/fc_rport.c:61: drivers/scsi/libfc/fc_rport.c: In function 'fc_rport_recv_plogi_req': include/linux/lockdep.h:347:45: error: 'rdata' may be used uninitialized in this function [-Werror=maybe-uninitialized] #define lockdep_is_held(lock) lock_is_held(&(lock)->dep_map) ^ drivers/scsi/libfc/fc_rport.c:1832:24: note: 'rdata' was declared here struct fc_rport_priv *rdata; The pointer to the lock is not initialized here, so besides the compile-time warning, this will likely lead to an immediate crash when dereferencing that pointer. Fixes: ee35624e1e4e ("scsi: libfc: Add lockdep annotations") Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- drivers/scsi/libfc/fc_rport.c | 2 -- 1 file changed, 2 deletions(-)