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authorHeiko Carstens <heiko.carstens@de.ibm.com>2009-01-14 14:13:54 +0100
committerHeiko Carstens <heiko.carstens@de.ibm.com>2009-01-14 14:15:14 +0100
commit2ed7c03ec17779afb4fcfa3b8c61df61bd4879ba (patch)
tree4e0fefd574bab5470a02edf439727f472a9663c6 /mm
parent4c696ba7982501d43dea11dbbaabd2aa8a19cc42 (diff)
downloadlinux-2ed7c03ec17779afb4fcfa3b8c61df61bd4879ba.tar.gz
[CVE-2009-0029] Convert all system calls to return a long
Convert all system calls to return a long. This should be a NOP since all converted types should have the same size anyway. With the exception of sys_exit_group which returned void. But that doesn't matter since the system call doesn't return. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'mm')
-rw-r--r--mm/filemap.c2
-rw-r--r--mm/mmap.c2
-rw-r--r--mm/mremap.c2
-rw-r--r--mm/nommu.c2
4 files changed, 4 insertions, 4 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index ceba0bd0366..538b75ed623 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1374,7 +1374,7 @@ do_readahead(struct address_space *mapping, struct file *filp,
return 0;
}
-asmlinkage ssize_t sys_readahead(int fd, loff_t offset, size_t count)
+asmlinkage long sys_readahead(int fd, loff_t offset, size_t count)
{
ssize_t ret;
struct file *file;
diff --git a/mm/mmap.c b/mm/mmap.c
index 749623196cb..a970d890cb2 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -245,7 +245,7 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma)
return next;
}
-asmlinkage unsigned long sys_brk(unsigned long brk)
+asmlinkage long sys_brk(unsigned long brk)
{
unsigned long rlim, retval;
unsigned long newbrk, oldbrk;
diff --git a/mm/mremap.c b/mm/mremap.c
index 646de959aa5..5572e0825d8 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -420,7 +420,7 @@ out_nc:
return ret;
}
-asmlinkage unsigned long sys_mremap(unsigned long addr,
+asmlinkage long sys_mremap(unsigned long addr,
unsigned long old_len, unsigned long new_len,
unsigned long flags, unsigned long new_addr)
{
diff --git a/mm/nommu.c b/mm/nommu.c
index 60ed8375c98..ee3e7892773 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -416,7 +416,7 @@ EXPORT_SYMBOL(vm_insert_page);
* to a regular file. in this case, the unmapping will need
* to invoke file system routines that need the global lock.
*/
-asmlinkage unsigned long sys_brk(unsigned long brk)
+asmlinkage long sys_brk(unsigned long brk)
{
struct mm_struct *mm = current->mm;