[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>
diff --git a/mm/filemap.c b/mm/filemap.c
index ceba0bd..538b75e 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1374,7 +1374,7 @@
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 7496231..a970d89 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -245,7 +245,7 @@
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 646de95..5572e08 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -420,7 +420,7 @@
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 60ed837..ee3e789 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -416,7 +416,7 @@
* 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;