[PATCH] char: kill unneeded memsets

char, another tmp_buf cleanup

No need to allocate one page as a side buffer.  It's no more used.  Clean this
(de)allocs of this useless memory pages in char subtree.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 15 deletions

diff --git a/drivers/char/epca.c b/drivers/char/epca.c
index 3baa2ab8cbd4..c3f95583a120 100644
--- a/drivers/char/epca.c
+++ b/drivers/char/epca.c
@@ -1113,11 +1113,8 @@ static void __exit epca_module_exit(void)
                 ch = card_ptr[crd];
                 for (count = 0; count < bd->numports; count++, ch++) 
                 { /* Begin for each port */
-                        if (ch) {
-                                if (ch->tty)
-                                        tty_hangup(ch->tty);
-                                kfree(ch->tmp_buf);
-                        }
+                        if (ch && ch->tty)
+                                tty_hangup(ch->tty);
                 } /* End for each port */
         } /* End for each card */
         pci_unregister_driver (&epca_driver);
@@ -1635,16 +1632,6 @@ static void post_fep_init(unsigned int crd)
                 init_waitqueue_head(&ch->close_wait);
 
                 spin_unlock_irqrestore(&epca_lock, flags);
-
-                ch->tmp_buf = kmalloc(ch->txbufsize,GFP_KERNEL);
-                if (!ch->tmp_buf) {
-                        printk(KERN_ERR "POST FEP INIT : kmalloc failed for port 0x%x\n",i);
-                        release_region((int)bd->port, 4);
-                        while(i-- > 0)
-                                kfree((ch--)->tmp_buf);
-                        return;
-                } else
-                        memset((void *)ch->tmp_buf,0,ch->txbufsize);
         } /* End for each port */
 
         printk(KERN_INFO