fs/binfmt_aout.c: fix pointer warnings

fs/binfmt_aout.c: In function `aout_core_dump':
fs/binfmt_aout.c:125: warning: passing argument 2 of `dump_write' makes pointer from integer without a cast
include/linux/coredump.h:12: note: expected `const void *' but argument is of type `long unsigned int'
fs/binfmt_aout.c:132: warning: passing argument 2 of `dump_write' makes pointer from integer without a cast
include/linux/coredump.h:12: note: expected `const void *' but argument is of type `long unsigned int'

due to dump_write() expecting a user void *.  Fold casts into the
START_DATA/START_STACK macros and shut up the warnings.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Cc: Daisuke HATAYAMA <d.hatayama@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 8 insertions, 6 deletions

diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index 15d80bb35d6..9b6aef0f75e 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -75,14 +75,16 @@ static int aout_core_dump(struct coredump_params *cprm)
         struct file *file = cprm->file;
         mm_segment_t fs;
         int has_dumped = 0;
-        unsigned long dump_start, dump_size;
+        void __user *dump_start;
+        int dump_size;
         struct user dump;
 #ifdef __alpha__
-#       define START_DATA(u)    (u.start_data)
+#       define START_DATA(u)    ((void __user *)u.start_data)
 #else
-#       define START_DATA(u)    ((u.u_tsize << PAGE_SHIFT) + u.start_code)
+#       define START_DATA(u)    ((void __user *)((u.u_tsize << PAGE_SHIFT) + \
+                                 u.start_code))
 #endif
-#       define START_STACK(u)   (u.start_stack)
+#       define START_STACK(u)   ((void __user *)u.start_stack)
 
         fs = get_fs();
         set_fs(KERNEL_DS);
@@ -104,9 +106,9 @@ static int aout_core_dump(struct coredump_params *cprm)
 
 /* make sure we actually have a data and stack area to dump */
         set_fs(USER_DS);
-        if (!access_ok(VERIFY_READ, (void __user *)START_DATA(dump), dump.u_dsize << PAGE_SHIFT))
+        if (!access_ok(VERIFY_READ, START_DATA(dump), dump.u_dsize << PAGE_SHIFT))
                 dump.u_dsize = 0;
-        if (!access_ok(VERIFY_READ, (void __user *)START_STACK(dump), dump.u_ssize << PAGE_SHIFT))
+        if (!access_ok(VERIFY_READ, START_STACK(dump), dump.u_ssize << PAGE_SHIFT))
                 dump.u_ssize = 0;
 
         set_fs(KERNEL_DS);