From 6c805adf17d491ea66d3cf80db3ada75b7180268 Mon Sep 17 00:00:00 2001 From: "Raju P.L.S.S.S.N" Date: Fri, 13 Jul 2018 19:15:46 +0530 Subject: [PATCH] drivers: qcom: rpmh: fix unwanted error check for get_tcs_of_type() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The patch fixes the bug reported by Dan Carpenter. It removes the unnecessary err check for ‘tcs’ reported by static checker warning: drivers/soc/qcom/rpmh-rsc.c:111 tcs_invalidate() warn: 'tcs' isn't an ERR_PTR See also: drivers/soc/qcom/rpmh-rsc.c:178 get_tcs_for_msg() warn: 'tcs' isn't an ERR_PTR drivers/soc/qcom/rpmh-rsc.c:180 get_tcs_for_msg() warn: 'tcs' isn't an ERR_PTR https://www.spinics.net/lists/linux-soc/msg04624.html Fixes: 9a3afcf ("drivers: qcom: rpmh-rsc: allow invalidation of sleep/wake TCS") Reported-by: Dan Carpenter Signed-off-by: Raju P.L.S.S.S.N Reviewed-by: Lina Iyer Signed-off-by: Andy Gross --- drivers/soc/qcom/rpmh-rsc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c index 8d9da6e7df0e..ee75da66d64b 100644 --- a/drivers/soc/qcom/rpmh-rsc.c +++ b/drivers/soc/qcom/rpmh-rsc.c @@ -108,8 +108,6 @@ static int tcs_invalidate(struct rsc_drv *drv, int type) struct tcs_group *tcs; tcs = get_tcs_of_type(drv, type); - if (IS_ERR(tcs)) - return PTR_ERR(tcs); spin_lock(&tcs->lock); if (bitmap_empty(tcs->slots, MAX_TCS_SLOTS)) { @@ -175,9 +173,9 @@ static struct tcs_group *get_tcs_for_msg(struct rsc_drv *drv, * TCSes before making an active state request. */ tcs = get_tcs_of_type(drv, type); - if (msg->state == RPMH_ACTIVE_ONLY_STATE && IS_ERR(tcs)) { + if (msg->state == RPMH_ACTIVE_ONLY_STATE && !tcs->num_tcs) { tcs = get_tcs_of_type(drv, WAKE_TCS); - if (!IS_ERR(tcs)) { + if (tcs->num_tcs) { ret = rpmh_rsc_invalidate(drv); if (ret) return ERR_PTR(ret);