From: Wambui Karuga <wambui.karugax@gmail.com>
To: outreachy-kernel@googlegroups.com
Cc: gregkh@linuxfoundation.org, devel@driverdev.osuosl.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] staging: kpc2000: Remove unnecessary return variable
Date: Wed, 9 Oct 2019 20:07:03 +0300 [thread overview]
Message-ID: <20191009170703.GA2869@wambui> (raw)
Remove unnecessary variable `val` in kp_spi_read_reg() that only holds
the return value from readq().
Issue found by coccinelle using the script:
@@
local idexpression ret;
expression e;
@@
-ret =
+return
e;
-return ret;
Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
---
drivers/staging/kpc2000/kpc2000_spi.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/staging/kpc2000/kpc2000_spi.c b/drivers/staging/kpc2000/kpc2000_spi.c
index 3be33c450cab..6ba94b0131da 100644
--- a/drivers/staging/kpc2000/kpc2000_spi.c
+++ b/drivers/staging/kpc2000/kpc2000_spi.c
@@ -162,14 +162,12 @@ union kp_spi_ffctrl {
kp_spi_read_reg(struct kp_spi_controller_state *cs, int idx)
{
u64 __iomem *addr = cs->base;
- u64 val;
addr += idx;
if ((idx == KP_SPI_REG_CONFIG) && (cs->conf_cache >= 0))
return cs->conf_cache;
- val = readq(addr);
- return val;
+ return readq(addr);
}
static inline void
--
2.23.0
next reply other threads:[~2019-10-09 17:07 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-09 17:07 Wambui Karuga [this message]
2019-10-09 18:55 ` [Outreachy kernel] [PATCH] staging: kpc2000: Remove unnecessary return variable Julia Lawall
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