um: Fix pointer cast

Fix a pointer cast typo introduced in v4.4-rc5 especially visible for
the i386 subarchitecture where it results in a kernel crash.

[ Also removed pointless cast as per Al Viro - Linus ]

Fixes: 8090bfd2bb9a ("um: Fix fpstate handling")
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Jeff Dike <jdike@addtoit.com>
Acked-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/x86/um/signal.c b/arch/x86/um/signal.c
index e5f854ce2d72404237067031a09297c8f0d3f424..14fcd01ed99293c162582438b4755a47fff59f43 100644 (file)
--- a/arch/x86/um/signal.c
+++ b/arch/x86/um/signal.c
@@ -470,7 +470,7 @@ long sys_sigreturn(void)
        struct sigcontext __user *sc = &frame->sc;
        int sig_size = (_NSIG_WORDS - 1) * sizeof(unsigned long);
 
-       if (copy_from_user(&set.sig[0], (void *)sc->oldmask, sizeof(set.sig[0])) ||
+       if (copy_from_user(&set.sig[0], &sc->oldmask, sizeof(set.sig[0])) ||
            copy_from_user(&set.sig[1], frame->extramask, sig_size))
                goto segfault;