[PATCH -mm 3/3] call_usermodehelper: UMH_WAIT_EXEC ignoreskernel_thread() failure

[Oleg Nesterov]

UMH_WAIT_EXEC should report the error if kernel_thread() fails, like
UMH_WAIT_PROC does.

Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
---

 kernel/kmod.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- mm/kernel/kmod.c~3_UMH_WAIT_EXEC	2010-03-09 21:56:36.000000000 +0100
+++ mm/kernel/kmod.c	2010-03-09 22:23:37.000000000 +0100
@@ -254,10 +254,10 @@ static void __call_usermodehelper(struct
 	case UMH_WAIT_PROC:
 		if (pid > 0)
 			break;
-		sub_info->retval = pid;
 		/* FALLTHROUGH */
-
 	case UMH_WAIT_EXEC:
+		if (pid < 0)
+			sub_info->retval = pid;
 		complete(sub_info->complete);
 	}
 }

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