From: Mariusz Kozlowski <m.kozlowski@tuxland.pl>

This patch does kmalloc + memset conversion to kzalloc and removes some
redundant argument checks.

 fs/cifs/connect.c | 109282 -> 109078 (-204 bytes)
 fs/cifs/connect.o | 211804 -> 211576 (-228 bytes)

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/cifs/connect.c |   30 +++++++++++-------------------
 1 file changed, 11 insertions(+), 19 deletions(-)

diff -puN fs/cifs/connect.c~fs-cifs-connectc-kmalloc-memset-conversion-to-kzalloc fs/cifs/connect.c
--- a/fs/cifs/connect.c~fs-cifs-connectc-kmalloc-memset-conversion-to-kzalloc
+++ a/fs/cifs/connect.c
@@ -673,10 +673,8 @@ multi_t2_fnd:
 		server->ssocket = NULL;
 	}
 	/* buffer usuallly freed in free_mid - need to free it here on exit */
-	if (bigbuf != NULL)
-		cifs_buf_release(bigbuf);
-	if (smallbuf != NULL)
-		cifs_small_buf_release(smallbuf);
+	cifs_buf_release(bigbuf);
+	cifs_small_buf_release(smallbuf);
 
 	read_lock(&GlobalSMBSeslock);
 	if (list_empty(&server->pending_mid_q)) {
@@ -1901,8 +1899,8 @@ cifs_mount(struct super_block *sb, struc
 			return rc;
 		}
 
-		srvTcp = kmalloc(sizeof (struct TCP_Server_Info), GFP_KERNEL);
-		if (srvTcp == NULL) {
+		srvTcp = kzalloc(sizeof(struct TCP_Server_Info), GFP_KERNEL);
+		if (!srvTcp) {
 			rc = -ENOMEM;
 			sock_release(csocket);
 			kfree(volume_info.UNC);
@@ -1911,7 +1909,6 @@ cifs_mount(struct super_block *sb, struc
 			FreeXid(xid);
 			return rc;
 		} else {
-			memset(srvTcp, 0, sizeof (struct TCP_Server_Info));
 			memcpy(&srvTcp->addr.sockAddr, &sin_server,
 				sizeof (struct sockaddr_in));
 			atomic_set(&srvTcp->inFlight, 0);
@@ -2146,8 +2143,8 @@ cifs_mount(struct super_block *sb, struc
 			}
 		}
 		 /* If find_unc succeeded then rc == 0 so we can not end */
-		if (tcon)  /* up accidently freeing someone elses tcon struct */
-			tconInfoFree(tcon);
+		/* up accidently freeing someone elses tcon struct */
+		tconInfoFree(tcon);
 		if (existingCifsSes == NULL) {
 			if (pSesInfo) {
 				if ((pSesInfo->server) &&
@@ -2518,8 +2515,7 @@ CIFSSessSetup(unsigned int xid, struct c
 sesssetup_nomem:	/* do not return an error on nomem for the info strings,
 			   since that could make reconnection harder, and
 			   reconnection might be needed to free memory */
-	if (smb_buffer)
-		cifs_buf_release(smb_buffer);
+	cifs_buf_release(smb_buffer);
 
 	return rc;
 }
@@ -2857,8 +2853,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned i
 		rc = -EIO;
 	}
 
-	if (smb_buffer)
-		cifs_buf_release(smb_buffer);
+	cifs_buf_release(smb_buffer);
 
 	return rc;
 }
@@ -3266,8 +3261,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xi
 		rc = -EIO;
 	}
 
-	if (smb_buffer)
-		cifs_buf_release(smb_buffer);
+	cifs_buf_release(smb_buffer);
 
 	return rc;
 }
@@ -3423,8 +3417,7 @@ CIFSTCon(unsigned int xid, struct cifsSe
 		ses->ipc_tid = smb_buffer_response->Tid;
 	}
 
-	if (smb_buffer)
-		cifs_buf_release(smb_buffer);
+	cifs_buf_release(smb_buffer);
 	return rc;
 }
 
@@ -3475,8 +3468,7 @@ cifs_umount(struct super_block *sb, stru
 	kfree(tmp);
 	if (ses)
 		schedule_timeout_interruptible(msecs_to_jiffies(500));
-	if (ses)
-		sesInfoFree(ses);
+	sesInfoFree(ses);
 
 	FreeXid(xid);
 	return rc;	/* BB check if we should always return zero here */
_