diff options
| author | Bodo Stroesser <bstroesser@fujitsu-siemens.com> | 2006-01-19 04:42:51 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-19 06:20:20 +0300 |
| commit | 097fdf06c63741e6ac1a4e01c2255861dd0a1c49 (patch) | |
| tree | 0aa53ac292ce1dd31cc5a416231ffc47eb0da940 /arch/um/kernel/tt/trap_user.c | |
| parent | c83d4635ee8c8fe16046ff6cabcff708be16df75 (diff) | |
| download | linux-097fdf06c63741e6ac1a4e01c2255861dd0a1c49.tar.xz | |
[PATCH] uml: TT mode softint fixes
Some fixes to make softints work in tt mode.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um/kernel/tt/trap_user.c')
| -rw-r--r-- | arch/um/kernel/tt/trap_user.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/um/kernel/tt/trap_user.c b/arch/um/kernel/tt/trap_user.c index a414c529fbcd..b5d9d64d91e4 100644 --- a/arch/um/kernel/tt/trap_user.c +++ b/arch/um/kernel/tt/trap_user.c @@ -18,7 +18,7 @@ void sig_handler_common_tt(int sig, void *sc_ptr) { struct sigcontext *sc = sc_ptr; struct tt_regs save_regs, *r; - int save_errno = errno, is_user; + int save_errno = errno, is_user = 0; void (*handler)(int, union uml_pt_regs *); /* This is done because to allow SIGSEGV to be delivered inside a SEGV @@ -35,7 +35,8 @@ void sig_handler_common_tt(int sig, void *sc_ptr) GET_FAULTINFO_FROM_SC(r->faultinfo, sc); } save_regs = *r; - is_user = user_context(SC_SP(sc)); + if (sc) + is_user = user_context(SC_SP(sc)); r->sc = sc; if(sig != SIGUSR2) r->syscall = -1; |