linux-kernel - [Patch v2] USB: sisusbvga: Remove unneeded variable

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Date:   Fri, 7 Jun 2019 07:26:58 +0530
From:   Hariprasad Kelam <hariprasad.kelam@...il.com>
To:     Thomas Winischhofer <thomas@...ischhofer.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [Patch v2] USB: sisusbvga: Remove unneeded variable

fix below warning reported by coccicheck

drivers/usb/misc/sisusbvga/sisusb.c:1753:5-8: Unneeded variable: "ret".
Return "0" on line 1877

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@...il.com>
-----
changes in v2: Change return type of sisusb_set_default_mode from int to void
               as it never fails.
---
 drivers/usb/misc/sisusbvga/sisusb.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c
index ea06f1f..2ab9600 100644
--- a/drivers/usb/misc/sisusbvga/sisusb.c
+++ b/drivers/usb/misc/sisusbvga/sisusb.c
@@ -1747,10 +1747,10 @@ static int sisusb_setup_screen(struct sisusb_usb_data *sisusb,
 	return ret;
 }
 
-static int sisusb_set_default_mode(struct sisusb_usb_data *sisusb,
+static void sisusb_set_default_mode(struct sisusb_usb_data *sisusb,
 		int touchengines)
 {
-	int ret = 0, i, j, modex, bpp, du;
+	int i, j, modex, bpp, du;
 	u8 sr31, cr63, tmp8;
 	static const char attrdata[] = {
 		0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
@@ -1873,8 +1873,6 @@ static int sisusb_set_default_mode(struct sisusb_usb_data *sisusb,
 	}
 
 	SETIREG(SISCR, 0x34, 0x44);	/* we just set std mode #44 */
-
-	return ret;
 }
 
 static int sisusb_init_gfxcore(struct sisusb_usb_data *sisusb)
@@ -2019,7 +2017,7 @@ static int sisusb_init_gfxcore(struct sisusb_usb_data *sisusb)
 
 		ret |= SETIREG(SISCR, 0x83, 0x00);
 
-		ret |= sisusb_set_default_mode(sisusb, 0);
+		sisusb_set_default_mode(sisusb, 0);
 
 		ret |= SETIREGAND(SISSR, 0x21, 0xdf);
 		ret |= SETIREGOR(SISSR, 0x01, 0x20);
@@ -2246,7 +2244,7 @@ static int sisusb_init_gfxdevice(struct sisusb_usb_data *sisusb, int initscreen)
 		if (sisusb_init_gfxcore(sisusb) == 0) {
 			sisusb->gfxinit = 1;
 			sisusb_get_ramconfig(sisusb);
-			ret |= sisusb_set_default_mode(sisusb, 1);
+			sisusb_set_default_mode(sisusb, 1);
 			ret |= sisusb_setup_screen(sisusb, 1, initscreen);
 		}
 	}
-- 
2.7.4