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staging/csr: Use kmemdup rather than duplicating its implementation

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Found with coccicheck.
The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Huewe 2013-01-26 00:19:19 +01:00 committed by Greg Kroah-Hartman
parent d662b8eba9
commit 2643c47fa4
1 changed files with 3 additions and 3 deletions
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6
drivers/staging/csr/drv.c
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@ -819,15 +819,15 @@ unifi_write(struct file *filp, const char *p, size_t len, loff_t *poff)
unifi_trace(priv, UDBG2, "unifi_write: signal 0x%.4X len:%d\n",
sig_id, signal_size);
/* Allocate a buffer for the signal */
signal_buf = kmalloc(signal_size, GFP_KERNEL);
/* Allocate a buffer for the signal */
signal_buf = kmemdup(bulkdata.d[0].os_data_ptr, signal_size,
GFP_KERNEL);
if (!signal_buf) {
unifi_net_data_free(priv, &bulkdata.d[0]);
return -ENOMEM;
}
/* Get the signal from the os_data_ptr */
memcpy(signal_buf, bulkdata.d[0].os_data_ptr, signal_size);
signal_buf[5] = (pcli->sender_id >> 8) & 0xff;
if (signal_size < len) {