linux-kernel - [PATCH 2/3] misc: xilinx-sdfec: cleanup return value in xsdfec_table

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Date:   Tue, 26 May 2020 18:26:27 -0700
From:   John Hubbard <jhubbard@...dia.com>
To:     LKML <linux-kernel@...r.kernel.org>
CC:     Souptick Joarder <jrdr.linux@...il.com>,
        John Hubbard <jhubbard@...dia.com>,
        Derek Kiernan <derek.kiernan@...inx.com>,
        Dragan Cvetic <dragan.cvetic@...inx.com>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Michal Simek <michal.simek@...inx.com>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH 2/3] misc: xilinx-sdfec: cleanup return value in xsdfec_table_write()

Return 0 for success, rather than the value of an incrementing
"reg" index. The reg value was never actually used, so this
simplifies the caller slightly.

Cc: Derek Kiernan <derek.kiernan@...inx.com>
Cc: Dragan Cvetic <dragan.cvetic@...inx.com>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Michal Simek <michal.simek@...inx.com>
Cc: linux-arm-kernel@...ts.infradead.org
Signed-off-by: John Hubbard <jhubbard@...dia.com>
---
 drivers/misc/xilinx_sdfec.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/misc/xilinx_sdfec.c b/drivers/misc/xilinx_sdfec.c
index e2766aad9e14..7e2ee3e547f2 100644
--- a/drivers/misc/xilinx_sdfec.c
+++ b/drivers/misc/xilinx_sdfec.c
@@ -648,7 +648,7 @@ static int xsdfec_table_write(struct xsdfec_dev *xsdfec, u32 offset,
 			 ((reg * XSDFEC_REG_WIDTH_JUMP) % PAGE_SIZE));
 		put_page(pages[i]);
 	}
-	return reg;
+	return 0;
 }
 
 static int xsdfec_add_ldpc(struct xsdfec_dev *xsdfec, void __user *arg)
@@ -727,8 +727,6 @@ static int xsdfec_add_ldpc(struct xsdfec_dev *xsdfec, void __user *arg)
 	ret = xsdfec_table_write(xsdfec, 4 * ldpc->qc_off, ldpc->qc_table,
 				 ldpc->nqc, XSDFEC_LDPC_QC_TABLE_ADDR_BASE,
 				 XSDFEC_QC_TABLE_DEPTH);
-	if (ret > 0)
-		ret = 0;
 err_out:
 	kfree(ldpc);
 	return ret;
-- 
2.26.2