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usb_gigaset: don't kmalloc(0)

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Zero-sized allocations are pointless anyway, and the SLUB allocator
complains about them, so stop doing that.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Hansjoerg Lipp <hjlipp@web.de>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Tilman Schmidt 2007-05-08 20:27:03 -07:00 committed by Linus Torvalds
parent b590d2baf1
commit 21d364954f
1 changed files with 4 additions and 10 deletions
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14
drivers/isdn/gigaset/usb-gigaset.c
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@ -138,8 +138,6 @@ struct usb_cardstate {
char bchars[6]; /* for request 0x19 */
};
struct usb_bc_state {};
static inline unsigned tiocm_to_gigaset(unsigned state)
{
return ((state & TIOCM_DTR) ? 1 : 0) | ((state & TIOCM_RTS) ? 2 : 0);
@ -579,25 +577,21 @@ static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6])
static int gigaset_freebcshw(struct bc_state *bcs)
{
if (!bcs->hw.usb)
return 0;
//FIXME
kfree(bcs->hw.usb);
/* unused */
return 1;
}
/* Initialize the b-channel structure */
static int gigaset_initbcshw(struct bc_state *bcs)
{
bcs->hw.usb = kmalloc(sizeof(struct usb_bc_state), GFP_KERNEL);
if (!bcs->hw.usb)
return 0;
/* unused */
bcs->hw.usb = NULL;
return 1;
}
static void gigaset_reinitbcshw(struct bc_state *bcs)
{
/* nothing to do for M10x */
}
static void gigaset_freecshw(struct cardstate *cs)