From 61fb5c043f92f5be4612b7511dcaf3f3fe6ab4c1 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 13 Apr 2018 21:22:21 +0200 Subject: [PATCH] ide: remove ide_driver_proc_write The driver proc file hasn't been writeable for a long time, so this is just dead code. Signed-off-by: Christoph Hellwig Acked-by: "Eric W. Biederman" --- drivers/ide/ide-proc.c | 46 ------------------------------------------ 1 file changed, 46 deletions(-) diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c index 863db44c7916..b3b8b8822d6a 100644 --- a/drivers/ide/ide-proc.c +++ b/drivers/ide/ide-proc.c @@ -528,58 +528,12 @@ static int ide_driver_proc_open(struct inode *inode, struct file *file) return single_open(file, ide_driver_proc_show, PDE_DATA(inode)); } -static int ide_replace_subdriver(ide_drive_t *drive, const char *driver) -{ - struct device *dev = &drive->gendev; - int ret = 1; - int err; - - device_release_driver(dev); - /* FIXME: device can still be in use by previous driver */ - strlcpy(drive->driver_req, driver, sizeof(drive->driver_req)); - err = device_attach(dev); - if (err < 0) - printk(KERN_WARNING "IDE: %s: device_attach error: %d\n", - __func__, err); - drive->driver_req[0] = 0; - if (dev->driver == NULL) { - err = device_attach(dev); - if (err < 0) - printk(KERN_WARNING - "IDE: %s: device_attach(2) error: %d\n", - __func__, err); - } - if (dev->driver && !strcmp(dev->driver->name, driver)) - ret = 0; - - return ret; -} - -static ssize_t ide_driver_proc_write(struct file *file, const char __user *buffer, - size_t count, loff_t *pos) -{ - ide_drive_t *drive = PDE_DATA(file_inode(file)); - char name[32]; - - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - if (count > 31) - count = 31; - if (copy_from_user(name, buffer, count)) - return -EFAULT; - name[count] = '\0'; - if (ide_replace_subdriver(drive, name)) - return -EINVAL; - return count; -} - static const struct file_operations ide_driver_proc_fops = { .owner = THIS_MODULE, .open = ide_driver_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, - .write = ide_driver_proc_write, }; static int ide_media_proc_show(struct seq_file *m, void *v) -- 2.30.2