diff options
| author | Akinobu Mita <akinobu.mita@gmail.com> | 2008-07-23 21:31:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-24 10:47:41 -0700 |
| commit | b340e8a57ef381e69c99a7a8ede61a6bf71a8014 (patch) | |
| tree | a7e975b48d0d6f6cfa49b8173b1b5daf99be580e /drivers/auxdisplay | |
| parent | 5bb49fcd501aa9fd3d321a22b7c01d9b0db7ab36 (diff) | |
| download | lwn-b340e8a57ef381e69c99a7a8ede61a6bf71a8014.tar.gz lwn-b340e8a57ef381e69c99a7a8ede61a6bf71a8014.zip | |
auxdisplay: small cleanups
- Use BUILD_BUG_ON for CFAG12864B_SIZE instead of runtime-check
- Use get_zeroed_page()
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Miguel Ojeda Sandonis <maxextreme@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/auxdisplay')
| -rw-r--r-- | drivers/auxdisplay/cfag12864b.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/drivers/auxdisplay/cfag12864b.c b/drivers/auxdisplay/cfag12864b.c index 683509f013ab..eacb175f6bd3 100644 --- a/drivers/auxdisplay/cfag12864b.c +++ b/drivers/auxdisplay/cfag12864b.c @@ -336,16 +336,9 @@ static int __init cfag12864b_init(void) "ks0108 is not initialized\n"); goto none; } + BUILD_BUG_ON(PAGE_SIZE < CFAG12864B_SIZE); - if (PAGE_SIZE < CFAG12864B_SIZE) { - printk(KERN_ERR CFAG12864B_NAME ": ERROR: " - "page size (%i) < cfag12864b size (%i)\n", - (unsigned int)PAGE_SIZE, CFAG12864B_SIZE); - ret = -ENOMEM; - goto none; - } - - cfag12864b_buffer = (unsigned char *) __get_free_page(GFP_KERNEL); + cfag12864b_buffer = (unsigned char *) get_zeroed_page(GFP_KERNEL); if (cfag12864b_buffer == NULL) { printk(KERN_ERR CFAG12864B_NAME ": ERROR: " "can't get a free page\n"); @@ -367,8 +360,6 @@ static int __init cfag12864b_init(void) if (cfag12864b_workqueue == NULL) goto cachealloced; - memset(cfag12864b_buffer, 0, CFAG12864B_SIZE); - cfag12864b_clear(); cfag12864b_on(); |