Revision 3d5fdba1842bdd2eef29364c660558cb4cbb3fe0 authored by Andrew Lunn on 07 December 2017, 00:05:56 UTC, committed by David S. Miller on 07 December 2017, 18:53:05 UTC
When removing the interrupt handling code, we should mask the
generation of interrupts. The code however unmasked all
interrupts. This can then cause a new interrupt. We then get into a
deadlock where the interrupt thread is waiting to run, and the code
continues, trying to remove the interrupt handler, which means waiting
for the thread to complete. On a UP machine this deadlocks.
Fix so we really mask interrupts in the hardware. The same error is
made in the error path when install the interrupt handling code.
Fixes: 3460a5770ce9 ("net: dsa: mv88e6xxx: Mask g1 interrupts and free interrupt")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent e46772a
| File | Mode | Size |
|---|---|---|
| Makefile | -rw-r--r-- | 361 bytes |
| compat.c | -rw-r--r-- | 2.2 KB |
| ipc_sysctl.c | -rw-r--r-- | 5.4 KB |
| mq_sysctl.c | -rw-r--r-- | 2.9 KB |
| mqueue.c | -rw-r--r-- | 40.1 KB |
| msg.c | -rw-r--r-- | 27.4 KB |
| msgutil.c | -rw-r--r-- | 3.6 KB |
| namespace.c | -rw-r--r-- | 4.8 KB |
| sem.c | -rw-r--r-- | 58.1 KB |
| shm.c | -rw-r--r-- | 38.6 KB |
| syscall.c | -rw-r--r-- | 4.3 KB |
| util.c | -rw-r--r-- | 22.2 KB |
| util.h | -rw-r--r-- | 7.2 KB |
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