[PATCH] uml: Fix SIGWINCH relaying

This makes SIGWINCH work again, and fixes a couple of SIGWINCH-associated
crashes.  First, the sigio thread disables SIGWINCH because all hell breaks
loose if it ever gets one and tries to call the signal handling code.  Second,
there was a problem with deferencing tty structs after they were freed.  The
SIGWINCH support for a tty wasn't being turned off or freed after the tty went
away.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c
index ba9ca1cc790a..1e126bfd31a7 100644
--- a/arch/um/os-Linux/process.c
+++ b/arch/um/os-Linux/process.c
@@ -123,6 +123,11 @@ int os_getpid(void)
         return(getpid());
 }
 
+int os_getpgrp(void)
+{
+        return getpgrp();
+}
+
 int os_map_memory(void *virt, int fd, unsigned long long off, unsigned long len,
                   int r, int w, int x)
 {