compat: return -EFAULT on error in waitid() · bffea77c08 - Gogs

compat: return -EFAULT on error in waitid()

The copy_to_user() call returns the number of bytes remaining but we
want to return -EFAULT on error.

Fixes "x32: fix waitid()"

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Dan Carpenter 12 years ago

parent

9a8ab1c399

commit

bffea77c08

1 changed files with 1 additions and 1 deletions

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							+ 1
							
							- 1
						
kernel/compat.c
							 
								View File
							
				@@ -593,7 +593,7 @@ COMPAT_SYSCALL_DEFINE5(waitid,
			
				 		else
			
				 			ret = put_compat_rusage(&ru, uru);
			
				 		if (ret)
			
				-			return ret;
			
				+			return -EFAULT;
			
				 	}
			
				 	BUG_ON(info.si_code & __SI_MASK);