drivers/block/cciss.c: kmalloc + memset conversion to kzalloc

 drivers/block/cciss.c | 104285 -> 104168 (-117 bytes)
 drivers/block/cciss.o | 277400 -> 277124 (-276 bytes)

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index a11b2bd..084358a 100644 (file)
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -1977,12 +1977,13 @@ cciss_read_capacity(int ctlr, int logvol, int withirq, sector_t *total_size,
 {
        ReadCapdata_struct *buf;
        int return_code;
-       buf = kmalloc(sizeof(ReadCapdata_struct), GFP_KERNEL);
-       if (buf == NULL) {
+
+       buf = kzalloc(sizeof(ReadCapdata_struct), GFP_KERNEL);
+       if (!buf) {
                printk(KERN_WARNING "cciss: out of memory\n");
                return;
        }
-       memset(buf, 0, sizeof(ReadCapdata_struct));
+
        if (withirq)
                return_code = sendcmd_withirq(CCISS_READ_CAPACITY,
                                ctlr, buf, sizeof(ReadCapdata_struct),
@@ -2003,7 +2004,6 @@ cciss_read_capacity(int ctlr, int logvol, int withirq, sector_t *total_size,
                printk(KERN_INFO "      blocks= %llu block_size= %d\n",
                (unsigned long long)*total_size+1, *block_size);
        kfree(buf);
-       return;
 }
 
 static void
@@ -2011,12 +2011,13 @@ cciss_read_capacity_16(int ctlr, int logvol, int withirq, sector_t *total_size,
 {
        ReadCapdata_struct_16 *buf;
        int return_code;
-       buf = kmalloc(sizeof(ReadCapdata_struct_16), GFP_KERNEL);
-       if (buf == NULL) {
+
+       buf = kzalloc(sizeof(ReadCapdata_struct_16), GFP_KERNEL);
+       if (!buf) {
                printk(KERN_WARNING "cciss: out of memory\n");
                return;
        }
-       memset(buf, 0, sizeof(ReadCapdata_struct_16));
+
        if (withirq) {
                return_code = sendcmd_withirq(CCISS_READ_CAPACITY_16,
                        ctlr, buf, sizeof(ReadCapdata_struct_16),
@@ -2038,7 +2039,6 @@ cciss_read_capacity_16(int ctlr, int logvol, int withirq, sector_t *total_size,
        printk(KERN_INFO "      blocks= %llu block_size= %d\n",
               (unsigned long long)*total_size+1, *block_size);
        kfree(buf);
-       return;
 }
 
 static int cciss_revalidate(struct gendisk *disk)