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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-15 15:44:51 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-15 15:44:51 +1000 |
| commit | 43d2548bb2ef7e6d753f91468a746784041e522d (patch) | |
| tree | 77d13fcd48fd998393abb825ec36e2b732684a73 /drivers/input/mousedev.c | |
| parent | 585583d95c5660973bc0cf64add517b040acd8a4 (diff) | |
| parent | 85082fd7cbe3173198aac0eb5e85ab1edcc6352c (diff) | |
Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-build
Manual fixup of:
arch/powerpc/Kconfig
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; } |