From 7f032d6ef6154868a2a5d5f6b2c3f8587292196c Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Wed, 15 Apr 2015 16:17:54 -0700 Subject: [PATCH] ipc: remove use of seq_printf return value The seq_printf return value, because it's frequently misused, will eventually be converted to void. See: commit 1f33c41c03da ("seq_file: Rename seq_overflow() to seq_has_overflowed() and make public") Signed-off-by: Joe Perches Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- ipc/msg.c | 34 ++++++++++++++++++---------------- ipc/sem.c | 26 ++++++++++++++------------ ipc/shm.c | 42 ++++++++++++++++++++++-------------------- ipc/util.c | 6 ++++-- 4 files changed, 58 insertions(+), 50 deletions(-) diff --git a/ipc/msg.c b/ipc/msg.c index a7261d5cbc89..2b6fdbb9e0e9 100644 --- a/ipc/msg.c +++ b/ipc/msg.c @@ -1015,22 +1015,24 @@ static int sysvipc_msg_proc_show(struct seq_file *s, void *it) struct user_namespace *user_ns = seq_user_ns(s); struct msg_queue *msq = it; - return seq_printf(s, - "%10d %10d %4o %10lu %10lu %5u %5u %5u %5u %5u %5u %10lu %10lu %10lu\n", - msq->q_perm.key, - msq->q_perm.id, - msq->q_perm.mode, - msq->q_cbytes, - msq->q_qnum, - msq->q_lspid, - msq->q_lrpid, - from_kuid_munged(user_ns, msq->q_perm.uid), - from_kgid_munged(user_ns, msq->q_perm.gid), - from_kuid_munged(user_ns, msq->q_perm.cuid), - from_kgid_munged(user_ns, msq->q_perm.cgid), - msq->q_stime, - msq->q_rtime, - msq->q_ctime); + seq_printf(s, + "%10d %10d %4o %10lu %10lu %5u %5u %5u %5u %5u %5u %10lu %10lu %10lu\n", + msq->q_perm.key, + msq->q_perm.id, + msq->q_perm.mode, + msq->q_cbytes, + msq->q_qnum, + msq->q_lspid, + msq->q_lrpid, + from_kuid_munged(user_ns, msq->q_perm.uid), + from_kgid_munged(user_ns, msq->q_perm.gid), + from_kuid_munged(user_ns, msq->q_perm.cuid), + from_kgid_munged(user_ns, msq->q_perm.cgid), + msq->q_stime, + msq->q_rtime, + msq->q_ctime); + + return 0; } #endif diff --git a/ipc/sem.c b/ipc/sem.c index 92842113c6a9..d1a6edd17eba 100644 --- a/ipc/sem.c +++ b/ipc/sem.c @@ -2170,17 +2170,19 @@ static int sysvipc_sem_proc_show(struct seq_file *s, void *it) sem_otime = get_semotime(sma); - return seq_printf(s, - "%10d %10d %4o %10u %5u %5u %5u %5u %10lu %10lu\n", - sma->sem_perm.key, - sma->sem_perm.id, - sma->sem_perm.mode, - sma->sem_nsems, - from_kuid_munged(user_ns, sma->sem_perm.uid), - from_kgid_munged(user_ns, sma->sem_perm.gid), - from_kuid_munged(user_ns, sma->sem_perm.cuid), - from_kgid_munged(user_ns, sma->sem_perm.cgid), - sem_otime, - sma->sem_ctime); + seq_printf(s, + "%10d %10d %4o %10u %5u %5u %5u %5u %10lu %10lu\n", + sma->sem_perm.key, + sma->sem_perm.id, + sma->sem_perm.mode, + sma->sem_nsems, + from_kuid_munged(user_ns, sma->sem_perm.uid), + from_kgid_munged(user_ns, sma->sem_perm.gid), + from_kuid_munged(user_ns, sma->sem_perm.cuid), + from_kgid_munged(user_ns, sma->sem_perm.cgid), + sem_otime, + sma->sem_ctime); + + return 0; } #endif diff --git a/ipc/shm.c b/ipc/shm.c index 19633b4a2350..d280a74af2ef 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -1342,25 +1342,27 @@ static int sysvipc_shm_proc_show(struct seq_file *s, void *it) #define SIZE_SPEC "%21lu" #endif - return seq_printf(s, - "%10d %10d %4o " SIZE_SPEC " %5u %5u " - "%5lu %5u %5u %5u %5u %10lu %10lu %10lu " - SIZE_SPEC " " SIZE_SPEC "\n", - shp->shm_perm.key, - shp->shm_perm.id, - shp->shm_perm.mode, - shp->shm_segsz, - shp->shm_cprid, - shp->shm_lprid, - shp->shm_nattch, - from_kuid_munged(user_ns, shp->shm_perm.uid), - from_kgid_munged(user_ns, shp->shm_perm.gid), - from_kuid_munged(user_ns, shp->shm_perm.cuid), - from_kgid_munged(user_ns, shp->shm_perm.cgid), - shp->shm_atim, - shp->shm_dtim, - shp->shm_ctim, - rss * PAGE_SIZE, - swp * PAGE_SIZE); + seq_printf(s, + "%10d %10d %4o " SIZE_SPEC " %5u %5u " + "%5lu %5u %5u %5u %5u %10lu %10lu %10lu " + SIZE_SPEC " " SIZE_SPEC "\n", + shp->shm_perm.key, + shp->shm_perm.id, + shp->shm_perm.mode, + shp->shm_segsz, + shp->shm_cprid, + shp->shm_lprid, + shp->shm_nattch, + from_kuid_munged(user_ns, shp->shm_perm.uid), + from_kgid_munged(user_ns, shp->shm_perm.gid), + from_kuid_munged(user_ns, shp->shm_perm.cuid), + from_kgid_munged(user_ns, shp->shm_perm.cgid), + shp->shm_atim, + shp->shm_dtim, + shp->shm_ctim, + rss * PAGE_SIZE, + swp * PAGE_SIZE); + + return 0; } #endif diff --git a/ipc/util.c b/ipc/util.c index 106bed0378ab..ff3323ef8d8b 100644 --- a/ipc/util.c +++ b/ipc/util.c @@ -837,8 +837,10 @@ static int sysvipc_proc_show(struct seq_file *s, void *it) struct ipc_proc_iter *iter = s->private; struct ipc_proc_iface *iface = iter->iface; - if (it == SEQ_START_TOKEN) - return seq_puts(s, iface->header); + if (it == SEQ_START_TOKEN) { + seq_puts(s, iface->header); + return 0; + } return iface->show(s, it); } -- 2.20.1