[PATCH] fix possible PAGE_CACHE_SHIFT overflows

[powerpc.git] / fs / sysv / dir.c

diff --git a/fs/sysv/dir.c b/fs/sysv/dir.c
index 69a085a..cce8b05 100644 (file)
--- a/fs/sysv/dir.c
+++ b/fs/sysv/dir.c
@@ -103,7 +103,7 @@ static int sysv_readdir(struct file * filp, void * dirent, filldir_t filldir)
                        offset = (char *)de - kaddr;
 
                        over = filldir(dirent, name, strnlen(name,SYSV_NAMELEN),
-                                       (n<<PAGE_CACHE_SHIFT) | offset,
+                                       ((loff_t)n<<PAGE_CACHE_SHIFT) | offset,
                                        fs16_to_cpu(SYSV_SB(sb), de->inode),
                                        DT_UNKNOWN);
                        if (over) {
@@ -115,7 +115,7 @@ static int sysv_readdir(struct file * filp, void * dirent, filldir_t filldir)
        }
 
 done:
-       filp->f_pos = (n << PAGE_CACHE_SHIFT) | offset;
+       filp->f_pos = ((loff_t)n << PAGE_CACHE_SHIFT) | offset;
        unlock_kernel();
        return 0;
 }