diff options
author | Al Viro <viro@zeniv.linux.org.uk> | 2022-12-14 18:57:27 +0100 |
---|---|---|
committer | Al Viro <viro@zeniv.linux.org.uk> | 2023-01-11 21:30:08 +0100 |
commit | 4a29a1262a47acd8e81a3824492a5aa8f8c5fc95 (patch) | |
tree | 74cd22d71095d17289e06d184a5d57d984e9df1e /fs/minix | |
parent | Linux 6.2-rc3 (diff) | |
download | linux-4a29a1262a47acd8e81a3824492a5aa8f8c5fc95.tar.xz linux-4a29a1262a47acd8e81a3824492a5aa8f8c5fc95.zip |
minix: make minix_new_inode() return error as ERR_PTR(-E...)
adjust the callers
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/minix')
-rw-r--r-- | fs/minix/bitmap.c | 16 | ||||
-rw-r--r-- | fs/minix/minix.h | 2 | ||||
-rw-r--r-- | fs/minix/namei.c | 68 |
3 files changed, 36 insertions, 50 deletions
diff --git a/fs/minix/bitmap.c b/fs/minix/bitmap.c index 9115948c624e..af50d8e9cd89 100644 --- a/fs/minix/bitmap.c +++ b/fs/minix/bitmap.c @@ -210,7 +210,7 @@ void minix_free_inode(struct inode * inode) mark_buffer_dirty(bh); } -struct inode *minix_new_inode(const struct inode *dir, umode_t mode, int *error) +struct inode *minix_new_inode(const struct inode *dir, umode_t mode) { struct super_block *sb = dir->i_sb; struct minix_sb_info *sbi = minix_sb(sb); @@ -220,13 +220,10 @@ struct inode *minix_new_inode(const struct inode *dir, umode_t mode, int *error) unsigned long j; int i; - if (!inode) { - *error = -ENOMEM; - return NULL; - } + if (!inode) + return ERR_PTR(-ENOMEM); j = bits_per_zone; bh = NULL; - *error = -ENOSPC; spin_lock(&bitmap_lock); for (i = 0; i < sbi->s_imap_blocks; i++) { bh = sbi->s_imap[i]; @@ -237,20 +234,20 @@ struct inode *minix_new_inode(const struct inode *dir, umode_t mode, int *error) if (!bh || j >= bits_per_zone) { spin_unlock(&bitmap_lock); iput(inode); - return NULL; + return ERR_PTR(-ENOSPC); } if (minix_test_and_set_bit(j, bh->b_data)) { /* shouldn't happen */ spin_unlock(&bitmap_lock); printk("minix_new_inode: bit already set\n"); iput(inode); - return NULL; + return ERR_PTR(-ENOSPC); } spin_unlock(&bitmap_lock); mark_buffer_dirty(bh); j += i * bits_per_zone; if (!j || j > sbi->s_ninodes) { iput(inode); - return NULL; + return ERR_PTR(-ENOSPC); } inode_init_owner(&init_user_ns, inode, dir, mode); inode->i_ino = j; @@ -260,7 +257,6 @@ struct inode *minix_new_inode(const struct inode *dir, umode_t mode, int *error) insert_inode_hash(inode); mark_inode_dirty(inode); - *error = 0; return inode; } diff --git a/fs/minix/minix.h b/fs/minix/minix.h index 202173368025..7158a68bdc63 100644 --- a/fs/minix/minix.h +++ b/fs/minix/minix.h @@ -45,7 +45,7 @@ struct minix_sb_info { extern struct inode *minix_iget(struct super_block *, unsigned long); extern struct minix_inode * minix_V1_raw_inode(struct super_block *, ino_t, struct buffer_head **); extern struct minix2_inode * minix_V2_raw_inode(struct super_block *, ino_t, struct buffer_head **); -extern struct inode * minix_new_inode(const struct inode *, umode_t, int *); +extern struct inode * minix_new_inode(const struct inode *, umode_t); extern void minix_free_inode(struct inode * inode); extern unsigned long minix_count_free_inodes(struct super_block *sb); extern int minix_new_block(struct inode * inode); diff --git a/fs/minix/namei.c b/fs/minix/namei.c index 8afdc408ca4f..a4f5e6caf8fe 100644 --- a/fs/minix/namei.c +++ b/fs/minix/namei.c @@ -36,33 +36,31 @@ static struct dentry *minix_lookup(struct inode * dir, struct dentry *dentry, un static int minix_mknod(struct user_namespace *mnt_userns, struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rdev) { - int error; struct inode *inode; if (!old_valid_dev(rdev)) return -EINVAL; - inode = minix_new_inode(dir, mode, &error); + inode = minix_new_inode(dir, mode); + if (IS_ERR(inode)) + return PTR_ERR(inode); - if (inode) { - minix_set_inode(inode, rdev); - mark_inode_dirty(inode); - error = add_nondir(dentry, inode); - } - return error; + minix_set_inode(inode, rdev); + mark_inode_dirty(inode); + return add_nondir(dentry, inode); } static int minix_tmpfile(struct user_namespace *mnt_userns, struct inode *dir, struct file *file, umode_t mode) { - int error; - struct inode *inode = minix_new_inode(dir, mode, &error); - if (inode) { - minix_set_inode(inode, 0); - mark_inode_dirty(inode); - d_tmpfile(file, inode); - } - return finish_open_simple(file, error); + struct inode *inode = minix_new_inode(dir, mode); + + if (IS_ERR(inode)) + return finish_open_simple(file, PTR_ERR(inode)); + minix_set_inode(inode, 0); + mark_inode_dirty(inode); + d_tmpfile(file, inode); + return finish_open_simple(file, 0); } static int minix_create(struct user_namespace *mnt_userns, struct inode *dir, @@ -74,30 +72,25 @@ static int minix_create(struct user_namespace *mnt_userns, struct inode *dir, static int minix_symlink(struct user_namespace *mnt_userns, struct inode *dir, struct dentry *dentry, const char *symname) { - int err = -ENAMETOOLONG; int i = strlen(symname)+1; struct inode * inode; + int err; if (i > dir->i_sb->s_blocksize) - goto out; + return -ENAMETOOLONG; - inode = minix_new_inode(dir, S_IFLNK | 0777, &err); - if (!inode) - goto out; + inode = minix_new_inode(dir, S_IFLNK | 0777); + if (IS_ERR(inode)) + return PTR_ERR(inode); minix_set_inode(inode, 0); err = page_symlink(inode, symname, i); - if (err) - goto out_fail; - - err = add_nondir(dentry, inode); -out: - return err; - -out_fail: - inode_dec_link_count(inode); - iput(inode); - goto out; + if (unlikely(err)) { + inode_dec_link_count(inode); + iput(inode); + return err; + } + return add_nondir(dentry, inode); } static int minix_link(struct dentry * old_dentry, struct inode * dir, @@ -117,14 +110,12 @@ static int minix_mkdir(struct user_namespace *mnt_userns, struct inode *dir, struct inode * inode; int err; - inode_inc_link_count(dir); - - inode = minix_new_inode(dir, S_IFDIR | mode, &err); - if (!inode) - goto out_dir; + inode = minix_new_inode(dir, S_IFDIR | mode); + if (IS_ERR(inode)) + return PTR_ERR(inode); + inode_inc_link_count(dir); minix_set_inode(inode, 0); - inode_inc_link_count(inode); err = minix_make_empty(inode, dir); @@ -143,7 +134,6 @@ out_fail: inode_dec_link_count(inode); inode_dec_link_count(inode); iput(inode); -out_dir: inode_dec_link_count(dir); goto out; } |