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ipc/sem: remove redundant assignments

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Get rid of redundant assignments which end up in values not being
read either because they are overwritten or the function ends.

Reported by clang-tidy [deadcode.DeadStores]

Link: https://lkml.kernel.org/r/20220409101933.207157-1-michalorzel.eng@gmail.com
Signed-off-by: Michal Orzel <michalorzel.eng@gmail.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Michal Orzel 2022-05-09 18:29:20 -07:00 committed by akpm
parent 800c24dc34
commit 0e90002965
1 changed files with 0 additions and 2 deletions
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2
ipc/sem.c
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@ -766,7 +766,6 @@ static int perform_atomic_semop(struct sem_array *sma, struct sem_queue *q)
for (sop = sops; sop < sops + nsops; sop++) { for (sop = sops; sop < sops + nsops; sop++) {
curr = &sma->sems[sop->sem_num]; curr = &sma->sems[sop->sem_num];
sem_op = sop->sem_op; sem_op = sop->sem_op;
result = curr->semval;
if (sop->sem_flg & SEM_UNDO) { if (sop->sem_flg & SEM_UNDO) {
int undo = un->semadj[sop->sem_num] - sem_op; int undo = un->semadj[sop->sem_num] - sem_op;
@ -1430,7 +1429,6 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
if (err) if (err)
goto out_rcu_wakeup; goto out_rcu_wakeup;
err = -EACCES;
switch (cmd) { switch (cmd) {
case GETALL: case GETALL:
{ {