From 69025c934b21a9ce49a76dfef59f1ebdfbe96c78 Mon Sep 17 00:00:00 2001 From: Antoine Jacquet Date: Mon, 18 Aug 2008 17:09:53 -0300 Subject: [PATCH] V4L/DVB (8731): zr364xx: remove BKL Remove the Big Kernel Lock from zr364xx driver after pushdown. Now using an internal locking mecanism on open(). Signed-off-by: Antoine Jacquet Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/zr364xx.c | 23 ++++++++++------------- 1 file changed, 10 insertions(+), 13 deletions(-) diff --git a/drivers/media/video/zr364xx.c b/drivers/media/video/zr364xx.c index 4e1ef10d22df..9d5d5985a7ea 100644 --- a/drivers/media/video/zr364xx.c +++ b/drivers/media/video/zr364xx.c @@ -641,25 +641,23 @@ static int zr364xx_open(struct inode *inode, struct file *file) DBG("zr364xx_open"); + mutex_lock(&cam->lock); + cam->skip = 2; - lock_kernel(); err = video_exclusive_open(inode, file); - if (err < 0) { - unlock_kernel(); - return err; - } + if (err < 0) + goto out; if (!cam->framebuf) { cam->framebuf = vmalloc_32(MAX_FRAME_SIZE * FRAMES); if (!cam->framebuf) { info("vmalloc_32 failed!"); - unlock_kernel(); - return -ENOMEM; + err = -ENOMEM; + goto out; } } - mutex_lock(&cam->lock); for (i = 0; init[cam->method][i].size != -1; i++) { err = send_control_msg(udev, 1, init[cam->method][i].value, @@ -667,9 +665,7 @@ static int zr364xx_open(struct inode *inode, struct file *file) init[cam->method][i].size); if (err < 0) { info("error during open sequence: %d", i); - mutex_unlock(&cam->lock); - unlock_kernel(); - return err; + goto out; } } @@ -679,10 +675,11 @@ static int zr364xx_open(struct inode *inode, struct file *file) * like Ekiga does during its startup, can crash the webcam */ mdelay(100); + err = 0; +out: mutex_unlock(&cam->lock); - unlock_kernel(); - return 0; + return err; } -- 2.39.5