diff options
Diffstat (limited to 'drivers/char')
-rw-r--r-- | drivers/char/misc.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/char/misc.c b/drivers/char/misc.c index 2f685f6eda48..ffa97d261cf3 100644 --- a/drivers/char/misc.c +++ b/drivers/char/misc.c | |||
@@ -114,7 +114,7 @@ static int misc_open(struct inode * inode, struct file * file) | |||
114 | int minor = iminor(inode); | 114 | int minor = iminor(inode); |
115 | struct miscdevice *c; | 115 | struct miscdevice *c; |
116 | int err = -ENODEV; | 116 | int err = -ENODEV; |
117 | const struct file_operations *old_fops, *new_fops = NULL; | 117 | const struct file_operations *new_fops = NULL; |
118 | 118 | ||
119 | mutex_lock(&misc_mtx); | 119 | mutex_lock(&misc_mtx); |
120 | 120 | ||
@@ -141,17 +141,11 @@ static int misc_open(struct inode * inode, struct file * file) | |||
141 | } | 141 | } |
142 | 142 | ||
143 | err = 0; | 143 | err = 0; |
144 | old_fops = file->f_op; | 144 | replace_fops(file, new_fops); |
145 | file->f_op = new_fops; | ||
146 | if (file->f_op->open) { | 145 | if (file->f_op->open) { |
147 | file->private_data = c; | 146 | file->private_data = c; |
148 | err=file->f_op->open(inode,file); | 147 | err = file->f_op->open(inode,file); |
149 | if (err) { | ||
150 | fops_put(file->f_op); | ||
151 | file->f_op = fops_get(old_fops); | ||
152 | } | ||
153 | } | 148 | } |
154 | fops_put(old_fops); | ||
155 | fail: | 149 | fail: |
156 | mutex_unlock(&misc_mtx); | 150 | mutex_unlock(&misc_mtx); |
157 | return err; | 151 | return err; |