From: Eric Moore <eric.moore@lsi.com>
Date: Sat, 29 Sep 2007 16:22:54 +0000 (-0600)
Subject: [SCSI] mptctl : shutup uninitialized variable warnings
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ab37128797148edb5993d98b638d668f75ee5119;p=linux-beck.git

[SCSI] mptctl : shutup uninitialized variable warnings

drivers/message/fusion/mptctl.c: In function ‘mptctl_mpt_command’:
drivers/message/fusion/mptctl.c:1764: warning: ‘bufIn.len’ may be used uninitialized in this function
drivers/message/fusion/mptctl.c:1765: warning: ‘bufOut.len’ may be used uninitialized in this function

come because gcc gets confused by some "goto" statements in above
function.  The warnings have been verified to be bogus, however, the
function does initialize these later (after the offending goto's) in
the function anyway.  So let's move those initializations to top of
function, thereby also shutting up these warnings.

Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: Satyam Sharma <satyam@infradead.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---

diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c
index 70178a8940b2..6029509702d3 100644
--- a/drivers/message/fusion/mptctl.c
+++ b/drivers/message/fusion/mptctl.c
@@ -1774,7 +1774,10 @@ mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr)
 	ulong 		timeout;
 	struct scsi_device *sdev;
 
+	/* bufIn and bufOut are used for user to kernel space transfers
+	 */
 	bufIn.kptr = bufOut.kptr = NULL;
+	bufIn.len = bufOut.len = 0;
 
 	if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
 	    (ioc == NULL)) {
@@ -2108,11 +2111,6 @@ mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr)
 	psge = (char *) (((int *) mf) + karg.dataSgeOffset);
 	flagsLength = 0;
 
-	/* bufIn and bufOut are used for user to kernel space transfers
-	 */
-	bufIn.kptr = bufOut.kptr = NULL;
-	bufIn.len = bufOut.len = 0;
-
 	if (karg.dataOutSize > 0)
 		sgSize ++;