From 39bc40e3d2f983764a8d140d65c77c6eca5264b6 Mon Sep 17 00:00:00 2001 From: Mark Johnston Date: Mon, 20 Jul 2020 14:28:26 +0000 Subject: [PATCH] ext2fs: Stop checking for failures from malloc(M_WAITOK). PR: 240545 Submitted by: Andrew Reiter Reviewed by: fsu MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D25707 --- sys/fs/ext2fs/ext2_acl.c | 2 -- sys/fs/ext2fs/ext2_alloc.c | 3 --- sys/fs/ext2fs/ext2_extents.c | 11 ----------- sys/fs/ext2fs/ext2_lookup.c | 4 ---- sys/fs/ext2fs/ext2_vnops.c | 10 ---------- 5 files changed, 30 deletions(-) diff --git a/sys/fs/ext2fs/ext2_acl.c b/sys/fs/ext2fs/ext2_acl.c index a49c98cdb937..30d1c182a0b4 100644 --- a/sys/fs/ext2fs/ext2_acl.c +++ b/sys/fs/ext2fs/ext2_acl.c @@ -234,8 +234,6 @@ ext2_getacl_posix1e(struct vop_getacl_args *ap) len = sizeof(*ap->a_aclp) + sizeof(struct ext2_acl_header); value = malloc(len, M_ACL, M_WAITOK); - if (!value) - return (ENOMEM); error = vn_extattr_get(ap->a_vp, IO_NODELOCKED, attrnamespace, attrname, &len, value, ap->a_td); diff --git a/sys/fs/ext2fs/ext2_alloc.c b/sys/fs/ext2fs/ext2_alloc.c index 1fa4a4c175f0..0cb93b3f0cb9 100644 --- a/sys/fs/ext2fs/ext2_alloc.c +++ b/sys/fs/ext2fs/ext2_alloc.c @@ -425,9 +425,6 @@ ext2_valloc(struct vnode *pvp, int mode, struct ucred *cred, struct vnode **vpp) } ip = malloc(sizeof(struct inode), M_EXT2NODE, M_WAITOK | M_ZERO); - if (ip == NULL) { - return (ENOMEM); - } /* Allocate a new vnode/inode. */ if ((error = getnewvnode("ext2fs", ump->um_mountp, &ext2_vnodeops, &vp)) != 0) { diff --git a/sys/fs/ext2fs/ext2_extents.c b/sys/fs/ext2fs/ext2_extents.c index 2aa9d6e13ac8..ccb7b861da49 100644 --- a/sys/fs/ext2fs/ext2_extents.c +++ b/sys/fs/ext2fs/ext2_extents.c @@ -322,9 +322,6 @@ ext4_ext_fill_path_bdata(struct ext4_extent_path *path, ("ext4_ext_fill_path_bdata: bad ep_data")); path->ep_data = malloc(bp->b_bufsize, M_EXT2EXTENTS, M_WAITOK); - if (!path->ep_data) - return (ENOMEM); - memcpy(path->ep_data, bp->b_data, bp->b_bufsize); path->ep_blk = blk; @@ -397,9 +394,6 @@ ext4_ext_find_extent(struct inode *ip, daddr_t block, path = malloc(EXT4_EXT_DEPTH_MAX * sizeof(struct ext4_extent_path), M_EXT2EXTENTS, M_WAITOK | M_ZERO); - if (!path) - return (ENOMEM); - *ppath = path; alloc = 1; } @@ -762,8 +756,6 @@ ext4_ext_split(struct inode *ip, struct ext4_extent_path *path, /* Allocate new blocks. */ ablks = malloc(sizeof(e4fs_daddr_t) * depth, M_EXT2EXTENTS, M_WAITOK | M_ZERO); - if (!ablks) - return (ENOMEM); for (a = 0; a < depth - at; a++) { newblk = ext4_ext_alloc_meta(ip); if (newblk == 0) @@ -1517,9 +1509,6 @@ ext4_ext_remove_space(struct inode *ip, off_t length, int flags, path = malloc(sizeof(struct ext4_extent_path) * (depth + 1), M_EXT2EXTENTS, M_WAITOK | M_ZERO); - if (!path) - return (ENOMEM); - path[0].ep_header = ehp; path[0].ep_depth = depth; i = 0; diff --git a/sys/fs/ext2fs/ext2_lookup.c b/sys/fs/ext2fs/ext2_lookup.c index 04ec059e85a4..d67a6442d1a5 100644 --- a/sys/fs/ext2fs/ext2_lookup.c +++ b/sys/fs/ext2fs/ext2_lookup.c @@ -894,10 +894,6 @@ ext2_add_first_entry(struct vnode *dvp, struct ext2fs_direct_2 *entry, entry->e2d_reclen = htole16(dirblksize - sizeof(struct ext2fs_direct_tail)); buf = malloc(dirblksize, M_TEMP, M_WAITOK); - if (!buf) { - error = ENOMEM; - goto out; - } memcpy(buf, entry, EXT2_DIR_REC_LEN(entry->e2d_namlen)); ext2_init_dirent_tail(EXT2_DIRENT_TAIL(buf, dirblksize)); ext2_dirent_csum_set(dp, (struct ext2fs_direct_2 *)buf); diff --git a/sys/fs/ext2fs/ext2_vnops.c b/sys/fs/ext2fs/ext2_vnops.c index 5bea1a376a9b..b98f8289e05c 100644 --- a/sys/fs/ext2fs/ext2_vnops.c +++ b/sys/fs/ext2fs/ext2_vnops.c @@ -1077,10 +1077,6 @@ ext2_rename(struct vop_rename_args *ap) ext2_dec_nlink(dp); dp->i_flag |= IN_CHANGE; dirbuf = malloc(dp->i_e2fs->e2fs_bsize, M_TEMP, M_WAITOK | M_ZERO); - if (!dirbuf) { - error = ENOMEM; - goto bad; - } error = vn_rdwr(UIO_READ, fvp, (caddr_t)dirbuf, ip->i_e2fs->e2fs_bsize, (off_t)0, UIO_SYSSPACE, IO_NODELOCKED | IO_NOMACCHECK, @@ -1390,12 +1386,6 @@ ext2_mkdir(struct vop_mkdir_args *ap) #define DIRBLKSIZ VTOI(dvp)->i_e2fs->e2fs_bsize dirtemplate.dotdot_reclen = htole16(DIRBLKSIZ - 12); buf = malloc(DIRBLKSIZ, M_TEMP, M_WAITOK | M_ZERO); - if (!buf) { - error = ENOMEM; - ext2_dec_nlink(dp); - dp->i_flag |= IN_CHANGE; - goto bad; - } if (EXT2_HAS_RO_COMPAT_FEATURE(fs, EXT2F_ROCOMPAT_METADATA_CKSUM)) { dirtemplate.dotdot_reclen = htole16(le16toh(dirtemplate.dotdot_reclen) -