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| author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2008-04-30 00:54:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-30 08:29:47 -0700 |
| commit | 8cd64518a3d166a21f5c69ac7860b3add0369dd0 (patch) | |
| tree | 980a3652e61c695b1c199362f735cb0b4e11d7aa /drivers/char/isicom.c | |
| parent | fb100b6ea7bf8a95e52b90cc0dc0ea5744a0a40a (diff) | |
| download | linux-8cd64518a3d166a21f5c69ac7860b3add0369dd0.tar.gz linux-8cd64518a3d166a21f5c69ac7860b3add0369dd0.tar.bz2 linux-8cd64518a3d166a21f5c69ac7860b3add0369dd0.zip | |
isicom: fix buffer allocation
Fix the rather strange buffer management on open that turned up while auditing
for BKL dependencies.
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/isicom.c')
| -rw-r--r-- | drivers/char/isicom.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c index 9c6be8da220c..4f3cefa8eb0e 100644 --- a/drivers/char/isicom.c +++ b/drivers/char/isicom.c @@ -813,15 +813,13 @@ static int isicom_setup_port(struct isi_port *port) return 0; if (!port->xmit_buf) { /* Relies on BKL */ - void *xmit_buf = (void *)get_zeroed_page(GFP_KERNEL); - - if (xmit_buf == NULL) + unsigned long page = get_zeroed_page(GFP_KERNEL); + if (page == 0) return -ENOMEM; - if (port->xmit_buf) { - free_page((unsigned long)xmit_buf); - return -ERESTARTSYS; - } - port->xmit_buf = xmit_buf; + if (port->xmit_buf) + free_page(page); + else + port->xmit_buf = (unsigned char *) page; } spin_lock_irqsave(&card->card_lock, flags); |