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authorMark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>2018-11-26 21:57:23 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-12-05 12:02:12 +0100
commit8fefbc6d4b26604be3ce627910a22aaeb7c382fd (patch)
tree37d65162a20d4e4861a33436000fd6e4b5d5d8bf /drivers/tty/sysrq.c
parentserial: 8250-mtk: add uart DMA support (diff)
downloadlinux-8fefbc6d4b26604be3ce627910a22aaeb7c382fd.tar.xz
linux-8fefbc6d4b26604be3ce627910a22aaeb7c382fd.zip
tty/sysrq: Do not call sync directly from sysrq_do_reset()
sysrq_do_reset() is called in softirq context, so it cannot call sync() directly. Instead, call orderly_reboot(), which creates a work item to run /sbin/reboot, or do emergency_sync and restart if the command fails. Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/sysrq.c')
-rw-r--r--drivers/tty/sysrq.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 28fb20e9f984..1f03078ec352 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -653,8 +653,7 @@ static void sysrq_do_reset(struct timer_list *t)
state->reset_requested = true;
- ksys_sync();
- kernel_restart(NULL);
+ orderly_reboot();
}
static void sysrq_handle_reset_request(struct sysrq_state *state)