util: fix thinko in runIO

When aligning you need to clear the bits in the mask and leave the
others aside.  Likely this code has never run, and will never run.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/src/util/iohelper.c b/src/util/iohelper.c
index 9e7bbdef92d2f979a705a50f44184b4cdd45e4f7..93154f89454c19f690a8ef3c8279a1a77d0be30e 100644 (file)
--- a/src/util/iohelper.c
+++ b/src/util/iohelper.c
@@ -98,7 +98,7 @@ runIO(const char *path, int fd, int oflags, unsigned long long length)
         goto cleanup;
     }
     base = buf;
-    buf = (char *) (((intptr_t) base + alignMask) & alignMask);
+    buf = (char *) (((intptr_t) base + alignMask) & ~alignMask);
 #endif
 
     switch (oflags & O_ACCMODE) {