diff options
author | David S. Miller <davem@davemloft.net> | 2008-07-18 02:39:39 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2008-07-18 02:39:39 -0700 |
commit | 49997d75152b3d23c53b0fa730599f2f74c92c65 (patch) | |
tree | 46e93126170d02cfec9505172e545732c1b69656 /drivers/input/mousedev.c | |
parent | a0c80b80e0fb48129e4e9d6a9ede914f9ff1850d (diff) | |
parent | 5b664cb235e97afbf34db9c4d77f08ebd725335e (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
Documentation/powerpc/booting-without-of.txt
drivers/atm/Makefile
drivers/net/fs_enet/fs_enet-main.c
drivers/pci/pci-acpi.c
net/8021q/vlan.c
net/iucv/iucv.c
Diffstat (limited to 'drivers/input/mousedev.c')
-rw-r--r-- | drivers/input/mousedev.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c index b989748598a..8137e50ded8 100644 --- a/drivers/input/mousedev.c +++ b/drivers/input/mousedev.c @@ -14,6 +14,7 @@ #define MOUSEDEV_MIX 31 #include <linux/slab.h> +#include <linux/smp_lock.h> #include <linux/poll.h> #include <linux/module.h> #include <linux/init.h> @@ -545,16 +546,21 @@ static int mousedev_open(struct inode *inode, struct file *file) if (i >= MOUSEDEV_MINORS) return -ENODEV; + lock_kernel(); error = mutex_lock_interruptible(&mousedev_table_mutex); - if (error) + if (error) { + unlock_kernel(); return error; + } mousedev = mousedev_table[i]; if (mousedev) get_device(&mousedev->dev); mutex_unlock(&mousedev_table_mutex); - if (!mousedev) + if (!mousedev) { + unlock_kernel(); return -ENODEV; + } client = kzalloc(sizeof(struct mousedev_client), GFP_KERNEL); if (!client) { @@ -573,6 +579,7 @@ static int mousedev_open(struct inode *inode, struct file *file) goto err_free_client; file->private_data = client; + unlock_kernel(); return 0; err_free_client: @@ -580,6 +587,7 @@ static int mousedev_open(struct inode *inode, struct file *file) kfree(client); err_put_mousedev: put_device(&mousedev->dev); + unlock_kernel(); return error; } |