From 8b5332f6994e34f2b400b25975760da709bbaa63 Mon Sep 17 00:00:00 2001 From: Jonathan Corbet Date: Thu, 19 Jun 2008 14:34:41 -0600 Subject: pcmcia: cm40x0 cdev lock_kernel() pushdown Signed-off-by: Jonathan Corbet Signed-off-by: Dominik Brodowski --- drivers/char/pcmcia/cm4000_cs.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) (limited to 'drivers/char/pcmcia/cm4000_cs.c') diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c index 933a7dd8f86c..59ca35156d81 100644 --- a/drivers/char/pcmcia/cm4000_cs.c +++ b/drivers/char/pcmcia/cm4000_cs.c @@ -1652,16 +1652,22 @@ static int cmm_open(struct inode *inode, struct file *filp) struct cm4000_dev *dev; struct pcmcia_device *link; int minor = iminor(inode); + int ret; if (minor >= CM4000_MAX_DEV) return -ENODEV; + lock_kernel(); link = dev_table[minor]; - if (link == NULL || !pcmcia_dev_present(link)) - return -ENODEV; + if (link == NULL || !pcmcia_dev_present(link)) { + ret = -ENODEV; + goto out; + } - if (link->open) - return -EBUSY; + if (link->open) { + ret = -EBUSY; + goto out; + } dev = link->priv; filp->private_data = dev; @@ -1681,8 +1687,10 @@ static int cmm_open(struct inode *inode, struct file *filp) * vaild = block until valid (or card * inserted) */ - if (filp->f_flags & O_NONBLOCK) - return -EAGAIN; + if (filp->f_flags & O_NONBLOCK) { + ret = -EAGAIN; + goto out; + } dev->mdelay = T_50MSEC; @@ -1692,7 +1700,10 @@ static int cmm_open(struct inode *inode, struct file *filp) link->open = 1; /* only one open per device */ DEBUGP(2, dev, "<- cmm_open\n"); - return nonseekable_open(inode, filp); + ret = nonseekable_open(inode, filp); +out: + unlock_kernel(); + return ret; } static int cmm_close(struct inode *inode, struct file *filp) -- cgit v1.2.2