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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-04-21 18:40:32 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-05-29 23:28:29 -0400 |
| commit | 863ced7fe762f80e67bc9171e47c7d80032cce12 (patch) | |
| tree | 1dc536a701c8d6a3217877d8fedef0d2c56cf1a3 /fs/compat.c | |
| parent | c2bd6c11cd05fed1eeb83230e87351357d72bb48 (diff) | |
| download | lwn-863ced7fe762f80e67bc9171e47c7d80032cce12.tar.gz lwn-863ced7fe762f80e67bc9171e47c7d80032cce12.zip | |
switch readdir/getdents to fget_light/fput_light
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/compat.c')
| -rw-r--r-- | fs/compat.c | 33 |
1 files changed, 14 insertions, 19 deletions
diff --git a/fs/compat.c b/fs/compat.c index 0781e619a62a..9f77486414bd 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -871,12 +871,12 @@ asmlinkage long compat_sys_old_readdir(unsigned int fd, { int error; struct file *file; + int fput_needed; struct compat_readdir_callback buf; - error = -EBADF; - file = fget(fd); + file = fget_light(fd, &fput_needed); if (!file) - goto out; + return -EBADF; buf.result = 0; buf.dirent = dirent; @@ -885,8 +885,7 @@ asmlinkage long compat_sys_old_readdir(unsigned int fd, if (buf.result) error = buf.result; - fput(file); -out: + fput_light(file, fput_needed); return error; } @@ -953,16 +952,15 @@ asmlinkage long compat_sys_getdents(unsigned int fd, struct file * file; struct compat_linux_dirent __user * lastdirent; struct compat_getdents_callback buf; + int fput_needed; int error; - error = -EFAULT; if (!access_ok(VERIFY_WRITE, dirent, count)) - goto out; + return -EFAULT; - error = -EBADF; - file = fget(fd); + file = fget_light(fd, &fput_needed); if (!file) - goto out; + return -EBADF; buf.current_dir = dirent; buf.previous = NULL; @@ -979,8 +977,7 @@ asmlinkage long compat_sys_getdents(unsigned int fd, else error = count - buf.count; } - fput(file); -out: + fput_light(file, fput_needed); return error; } @@ -1041,16 +1038,15 @@ asmlinkage long compat_sys_getdents64(unsigned int fd, struct file * file; struct linux_dirent64 __user * lastdirent; struct compat_getdents_callback64 buf; + int fput_needed; int error; - error = -EFAULT; if (!access_ok(VERIFY_WRITE, dirent, count)) - goto out; + return -EFAULT; - error = -EBADF; - file = fget(fd); + file = fget_light(fd, &fput_needed); if (!file) - goto out; + return -EBADF; buf.current_dir = dirent; buf.previous = NULL; @@ -1068,8 +1064,7 @@ asmlinkage long compat_sys_getdents64(unsigned int fd, else error = count - buf.count; } - fput(file); -out: + fput_light(file, fput_needed); return error; } #endif /* ! __ARCH_OMIT_COMPAT_SYS_GETDENTS64 */ |