From: Kevin McKinney <klmckinney1@gmail.com>
Date: Sat, 13 Oct 2012 03:49:35 +0000 (-0400)
Subject: Staging: bcm: Remove unneeded do while loop in InterfaceRDM.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7878626e14cb30df9bc1c9f38293bfa8a887e806;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

Staging: bcm: Remove unneeded do while loop in InterfaceRDM.

This patch removes an unneeded do while loop which
sends a control message to bcm usb device. In this case,
the loop executes once because usRetries is
initialized to zero. After the first iteration
this variable will be 1. Therefore, the statement:
"usRetries < MAX_RDM_WRM_RETIRES" will evaluate to
false causing the do while statement to execute
once because MAX_RDM_WRM_RETIRES is equal to 1.

Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/bcm/InterfaceMisc.c b/drivers/staging/bcm/InterfaceMisc.c
index 8c9cf2d38a5c..f43e644752a8 100644
--- a/drivers/staging/bcm/InterfaceMisc.c
+++ b/drivers/staging/bcm/InterfaceMisc.c
@@ -6,7 +6,6 @@ int InterfaceRDM(PS_INTERFACE_ADAPTER psIntfAdapter,
 		int len)
 {
 	int bytes;
-	unsigned short usRetries = 0;
 
 	if (!psIntfAdapter) {
 		BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0, "Interface Adapter is NULL");
@@ -29,27 +28,21 @@ int InterfaceRDM(PS_INTERFACE_ADAPTER psIntfAdapter,
 	}
 	psIntfAdapter->psAdapter->DeviceAccess = TRUE;
 
-	do {
-		bytes = usb_control_msg(psIntfAdapter->udev,
-					usb_rcvctrlpipe(psIntfAdapter->udev, 0),
-					0x02,
-					0xC2,
-					(addr & 0xFFFF),
-					((addr >> 16) & 0xFFFF),
-					buff,
-					len,
-					5000);
-
-		usRetries++;
-		if (-ENODEV == bytes) {
-			psIntfAdapter->psAdapter->device_removed = TRUE;
-			break;
-		}
+	bytes = usb_control_msg(psIntfAdapter->udev,
+				usb_rcvctrlpipe(psIntfAdapter->udev, 0),
+				0x02,
+				0xC2,
+				(addr & 0xFFFF),
+				((addr >> 16) & 0xFFFF),
+				buff,
+				len,
+				5000);
 
-	} while ((bytes < 0) && (usRetries < MAX_RDM_WRM_RETIRES));
+	if (-ENODEV == bytes)
+		psIntfAdapter->psAdapter->device_removed = TRUE;
 
 	if (bytes < 0)
-		BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, RDM, DBG_LVL_ALL, "RDM failed status :%d, retires :%d", bytes, usRetries);
+		BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, RDM, DBG_LVL_ALL, "RDM failed status :%d", bytes);
 	else
 		BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, RDM, DBG_LVL_ALL, "RDM sent %d", bytes);