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authorAlan Cox <alan@lxorguk.ukuu.org.uk>2008-04-30 03:54:17 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-30 11:29:47 -0400
commit8cd64518a3d166a21f5c69ac7860b3add0369dd0 (patch)
tree980a3652e61c695b1c199362f735cb0b4e11d7aa /drivers/char
parentfb100b6ea7bf8a95e52b90cc0dc0ea5744a0a40a (diff)
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')
-rw-r--r--drivers/char/isicom.c14
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)
813 return 0; 813 return 0;
814 if (!port->xmit_buf) { 814 if (!port->xmit_buf) {
815 /* Relies on BKL */ 815 /* Relies on BKL */
816 void *xmit_buf = (void *)get_zeroed_page(GFP_KERNEL); 816 unsigned long page = get_zeroed_page(GFP_KERNEL);
817 817 if (page == 0)
818 if (xmit_buf == NULL)
819 return -ENOMEM; 818 return -ENOMEM;
820 if (port->xmit_buf) { 819 if (port->xmit_buf)
821 free_page((unsigned long)xmit_buf); 820 free_page(page);
822 return -ERESTARTSYS; 821 else
823 } 822 port->xmit_buf = (unsigned char *) page;
824 port->xmit_buf = xmit_buf;
825 } 823 }
826 824
827 spin_lock_irqsave(&card->card_lock, flags); 825 spin_lock_irqsave(&card->card_lock, flags);