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| author | Arnd Bergmann <arnd@arndb.de> | 2008-05-20 19:15:34 +0200 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2008-06-20 22:05:54 +0200 |
| commit | 864fe51671c9e44fb9d02765623daac9acc26a8b (patch) | |
| tree | 649c55d5ff0f1651c0929f55a6513a4a22d5a9b2 /arch/x86/kernel/apm_32.c | |
| parent | apm-emulation: BKL pushdown (diff) | |
| download | linux-864fe51671c9e44fb9d02765623daac9acc26a8b.tar.xz linux-864fe51671c9e44fb9d02765623daac9acc26a8b.zip | |
apm_32: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/x86/kernel/apm_32.c')
| -rw-r--r-- | arch/x86/kernel/apm_32.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c index bf9290e29013..82222366477f 100644 --- a/arch/x86/kernel/apm_32.c +++ b/arch/x86/kernel/apm_32.c @@ -204,6 +204,7 @@ #include <linux/module.h> #include <linux/poll.h> +#include <linux/smp_lock.h> #include <linux/types.h> #include <linux/stddef.h> #include <linux/timer.h> @@ -1544,10 +1545,12 @@ static int do_open(struct inode *inode, struct file *filp) { struct apm_user *as; + lock_kernel(); as = kmalloc(sizeof(*as), GFP_KERNEL); if (as == NULL) { printk(KERN_ERR "apm: cannot allocate struct of size %d bytes\n", sizeof(*as)); + unlock_kernel(); return -ENOMEM; } as->magic = APM_BIOS_MAGIC; @@ -1569,6 +1572,7 @@ static int do_open(struct inode *inode, struct file *filp) user_list = as; spin_unlock(&user_list_lock); filp->private_data = as; + unlock_kernel(); return 0; } |