X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=fs%2Freaddir.c;h=b318d9b5af2e9c5d24a325ece38acac3027a2ef8;hb=e383d56487062275e9971094f2efcca34227ee60;hp=efe52e67657719963d5ac1cd22df34e7465d4234;hpb=5335a40be6867eff986a31bcd8fc82a5cb1e16bb;p=linux-2.6-omap-h63xx.git

diff --git a/fs/readdir.c b/fs/readdir.c
index efe52e67657..b318d9b5af2 100644
--- a/fs/readdir.c
+++ b/fs/readdir.c
@@ -30,7 +30,10 @@ int vfs_readdir(struct file *file, filldir_t filler, void *buf)
 	if (res)
 		goto out;
 
-	mutex_lock(&inode->i_mutex);
+	res = mutex_lock_killable(&inode->i_mutex);
+	if (res)
+		goto out;
+
 	res = -ENOENT;
 	if (!IS_DEADDIR(inode)) {
 		res = file->f_op->readdir(file, buf, filler);
@@ -77,8 +80,10 @@ static int fillonedir(void * __buf, const char * name, int namlen, loff_t offset
 	if (buf->result)
 		return -EINVAL;
 	d_ino = ino;
-	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
+		buf->result = -EOVERFLOW;
 		return -EOVERFLOW;
+	}
 	buf->result++;
 	dirent = buf->dirent;
 	if (!access_ok(VERIFY_WRITE, dirent,
@@ -112,7 +117,7 @@ asmlinkage long old_readdir(unsigned int fd, struct old_linux_dirent __user * di
 	buf.dirent = dirent;
 
 	error = vfs_readdir(file, fillonedir, &buf);
-	if (error >= 0)
+	if (buf.result)
 		error = buf.result;
 
 	fput(file);
@@ -152,8 +157,10 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
 	if (reclen > buf->count)
 		return -EINVAL;
 	d_ino = ino;
-	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
+		buf->error = -EOVERFLOW;
 		return -EOVERFLOW;
+	}
 	dirent = buf->previous;
 	if (dirent) {
 		if (__put_user(offset, &dirent->d_off))
@@ -202,9 +209,8 @@ asmlinkage long sys_getdents(unsigned int fd, struct linux_dirent __user * diren
 	buf.error = 0;
 
 	error = vfs_readdir(file, filldir, &buf);
-	if (error < 0)
-		goto out_putf;
-	error = buf.error;
+	if (error >= 0)
+		error = buf.error;
 	lastdirent = buf.previous;
 	if (lastdirent) {
 		if (put_user(file->f_pos, &lastdirent->d_off))
@@ -212,8 +218,6 @@ asmlinkage long sys_getdents(unsigned int fd, struct linux_dirent __user * diren
 		else
 			error = count - buf.count;
 	}
-
-out_putf:
 	fput(file);
 out:
 	return error;
@@ -286,19 +290,16 @@ asmlinkage long sys_getdents64(unsigned int fd, struct linux_dirent64 __user * d
 	buf.error = 0;
 
 	error = vfs_readdir(file, filldir64, &buf);
-	if (error < 0)
-		goto out_putf;
-	error = buf.error;
+	if (error >= 0)
+		error = buf.error;
 	lastdirent = buf.previous;
 	if (lastdirent) {
 		typeof(lastdirent->d_off) d_off = file->f_pos;
-		error = -EFAULT;
 		if (__put_user(d_off, &lastdirent->d_off))
-			goto out_putf;
-		error = count - buf.count;
+			error = -EFAULT;
+		else
+			error = count - buf.count;
 	}
-
-out_putf:
 	fput(file);
 out:
 	return error;