diff options
Diffstat (limited to 'drivers/char/ipmi')
| -rw-r--r-- | drivers/char/ipmi/ipmi_devintf.c | 10 | ||||
| -rw-r--r-- | drivers/char/ipmi/ipmi_watchdog.c | 6 |
2 files changed, 12 insertions, 4 deletions
diff --git a/drivers/char/ipmi/ipmi_devintf.c b/drivers/char/ipmi/ipmi_devintf.c index 0246a2b8ce4..c11a4048345 100644 --- a/drivers/char/ipmi/ipmi_devintf.c +++ b/drivers/char/ipmi/ipmi_devintf.c @@ -43,6 +43,7 @@ #include <linux/init.h> #include <linux/device.h> #include <linux/compat.h> +#include <linux/smp_lock.h> struct ipmi_file_private { @@ -100,7 +101,9 @@ static int ipmi_fasync(int fd, struct file *file, int on) struct ipmi_file_private *priv = file->private_data; int result; + lock_kernel(); /* could race against open() otherwise */ result = fasync_helper(fd, file, on, &priv->fasync_queue); + unlock_kernel(); return (result); } @@ -121,6 +124,7 @@ static int ipmi_open(struct inode *inode, struct file *file) if (!priv) return -ENOMEM; + lock_kernel(); priv->file = file; rv = ipmi_create_user(if_num, @@ -129,7 +133,7 @@ static int ipmi_open(struct inode *inode, struct file *file) &(priv->user)); if (rv) { kfree(priv); - return rv; + goto out; } file->private_data = priv; @@ -144,7 +148,9 @@ static int ipmi_open(struct inode *inode, struct file *file) priv->default_retries = -1; priv->default_retry_time_ms = 0; - return 0; +out: + unlock_kernel(); + return rv; } static int ipmi_release(struct inode *inode, struct file *file) diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c index 1b9a8704781..235fab0bdf7 100644 --- a/drivers/char/ipmi/ipmi_watchdog.c +++ b/drivers/char/ipmi/ipmi_watchdog.c @@ -35,6 +35,7 @@ #include <linux/moduleparam.h> #include <linux/ipmi.h> #include <linux/ipmi_smi.h> +#include <linux/smp_lock.h> #include <linux/watchdog.h> #include <linux/miscdevice.h> #include <linux/init.h> @@ -755,9 +756,8 @@ static ssize_t ipmi_write(struct file *file, rv = ipmi_heartbeat(); if (rv) return rv; - return 1; } - return 0; + return len; } static ssize_t ipmi_read(struct file *file, @@ -819,6 +819,8 @@ static int ipmi_open(struct inode *ino, struct file *filep) if (test_and_set_bit(0, &ipmi_wdog_open)) return -EBUSY; + cycle_kernel_lock(); + /* * Don't start the timer now, let it start on the * first heartbeat. |