parport: use kmemdup instead of kmalloc + memcpy

This replaces calls to kmalloc followed by memcpy with a single call to
kmemdup. This was found via make coccicheck.

Signed-off-by: Silviu-Mihai Popescu <silviupopescu1990@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c
index 050773c..a5251cb 100644 (file)
--- a/drivers/parport/parport_gsc.c
+++ b/drivers/parport/parport_gsc.c
@@ -246,14 +246,14 @@ struct parport *parport_gsc_probe_port(unsigned long base,
                printk (KERN_DEBUG "parport (0x%lx): no memory!\n", base);
                return NULL;
        }
-       ops = kmalloc (sizeof (struct parport_operations), GFP_KERNEL);
+       ops = kmemdup(&parport_gsc_ops, sizeof(struct parport_operations),
+                     GFP_KERNEL);
        if (!ops) {
                printk (KERN_DEBUG "parport (0x%lx): no memory for ops!\n",
                        base);
                kfree (priv);
                return NULL;
        }
-       memcpy (ops, &parport_gsc_ops, sizeof (struct parport_operations));
        priv->ctr = 0xc;
        priv->ctr_writable = 0xff;
        priv->dma_buf = 0;

diff --git a/drivers/parport/parport_sunbpp.c b/drivers/parport/parport_sunbpp.c
index 5c4b6a1..dffd6d0 100644 (file)
--- a/drivers/parport/parport_sunbpp.c
+++ b/drivers/parport/parport_sunbpp.c
@@ -284,12 +284,11 @@ static int bpp_probe(struct platform_device *op)
        size = resource_size(&op->resource[0]);
        dma = PARPORT_DMA_NONE;
 
-       ops = kmalloc(sizeof(struct parport_operations), GFP_KERNEL);
+       ops = kmemdup(&parport_sunbpp_ops, sizeof(struct parport_operations),
+                     GFP_KERNEL);
         if (!ops)
                goto out_unmap;
 
-        memcpy (ops, &parport_sunbpp_ops, sizeof(struct parport_operations));
-
        dprintk(("register_port\n"));
        if (!(p = parport_register_port((unsigned long)base, irq, dma, ops)))
                goto out_free_ops;

diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c
index 3f56bc0..92ed045 100644 (file)
--- a/drivers/parport/procfs.c
+++ b/drivers/parport/procfs.c
@@ -476,10 +476,9 @@ int parport_proc_register(struct parport *port)
        struct parport_sysctl_table *t;
        int i;
 
-       t = kmalloc(sizeof(*t), GFP_KERNEL);
+       t = kmemdup(&parport_sysctl_template, sizeof(*t), GFP_KERNEL);
        if (t == NULL)
                return -ENOMEM;
-       memcpy(t, &parport_sysctl_template, sizeof(*t));
 
        t->device_dir[0].extra1 = port;
 
@@ -523,10 +522,9 @@ int parport_device_proc_register(struct pardevice *device)
        struct parport_device_sysctl_table *t;
        struct parport * port = device->port;
        
-       t = kmalloc(sizeof(*t), GFP_KERNEL);
+       t = kmemdup(&parport_device_sysctl_template, sizeof(*t), GFP_KERNEL);
        if (t == NULL)
                return -ENOMEM;
-       memcpy(t, &parport_device_sysctl_template, sizeof(*t));
 
        t->dev_dir[0].child = t->parport_dir;
        t->parport_dir[0].child = t->port_dir;