diff options
Diffstat (limited to 'drivers/usb/host/uhci-debug.c')
| -rw-r--r-- | drivers/usb/host/uhci-debug.c | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c index 98cf0b26b968..6e7fb5f38db6 100644 --- a/drivers/usb/host/uhci-debug.c +++ b/drivers/usb/host/uhci-debug.c @@ -17,7 +17,6 @@ #include "uhci-hcd.h" -#define uhci_debug_operations (* (const struct file_operations *) NULL) static struct dentry *uhci_debugfs_root; #ifdef DEBUG @@ -495,18 +494,16 @@ static int uhci_debug_open(struct inode *inode, struct file *file) { struct uhci_hcd *uhci = inode->i_private; struct uhci_debug *up; - int ret = -ENOMEM; unsigned long flags; - lock_kernel(); up = kmalloc(sizeof(*up), GFP_KERNEL); if (!up) - goto out; + return -ENOMEM; up->data = kmalloc(MAX_OUTPUT, GFP_KERNEL); if (!up->data) { kfree(up); - goto out; + return -ENOMEM; } up->size = 0; @@ -517,10 +514,7 @@ static int uhci_debug_open(struct inode *inode, struct file *file) file->private_data = up; - ret = 0; -out: - unlock_kernel(); - return ret; + return 0; } static loff_t uhci_debug_lseek(struct file *file, loff_t off, int whence) @@ -528,9 +522,9 @@ static loff_t uhci_debug_lseek(struct file *file, loff_t off, int whence) struct uhci_debug *up; loff_t new = -1; - lock_kernel(); up = file->private_data; + /* XXX: atomic 64bit seek access, but that needs to be fixed in the VFS */ switch (whence) { case 0: new = off; @@ -539,11 +533,10 @@ static loff_t uhci_debug_lseek(struct file *file, loff_t off, int whence) new = file->f_pos + off; break; } - if (new < 0 || new > up->size) { - unlock_kernel(); + + if (new < 0 || new > up->size) return -EINVAL; - } - unlock_kernel(); + return (file->f_pos = new); } @@ -564,7 +557,6 @@ static int uhci_debug_release(struct inode *inode, struct file *file) return 0; } -#undef uhci_debug_operations static const struct file_operations uhci_debug_operations = { .owner = THIS_MODULE, .open = uhci_debug_open, @@ -572,6 +564,7 @@ static const struct file_operations uhci_debug_operations = { .read = uhci_debug_read, .release = uhci_debug_release, }; +#define UHCI_DEBUG_OPS #endif /* CONFIG_DEBUG_FS */ |